It's not easy making a themeless with multiple unstacked 15's. Often, the grid-spanners take over the entire grid and don't leave very much room for other good stuff. I like what Pete's done today, not only giving us four super-strong 15's, but finding a way to incorporate two 10's (STRIKE ZONE and BOOK RETURN) as well as a couple of 8's. Nice work.
It's a heck of a skeleton, for starters. It looks to me like Pete chose his favorite three grid-spanners, placed them into locations, and tried to see what might run through all three of them. BARON MUNCHAUSEN is a great one fitting those constraints! Having the flexibility to swap TAKE MY WORD FOR IT, DOUBLE ENTENDRES, and HOT AS BLUE BLAZES gave him the ability to move things around until he found a really nice central down entry.
And then those two tens. STRIKE ZONE and BOOK RETURN are both such great answers, and they fit so nicely. That's a difficult task, considering that you need answers that 1.) cross two grid-spanners and 2.) allow for smooth surrounding fill. So now we have the skeleton fixed in place.
Some constructors would be okay with just that, deploying blocks up to a 72-word grid. But not Pete! Why not stick with a 70-worder by opening up those SW and NE corners, allowing for two pairs of 8's? Those two corners would be daunting for most constructors, such big swaths of white space. BASS ALE running straight through that chunk of white makes it even harder to fill smoothly. It's a tough and ambitious goal.
There's a lot to admire in the fill today. There aren't as many marquee answers as usual, but the 15's and the 10's do a lot of heavy lifting. And NAKED EYE helps out too. Everything else tends to be a little shorter, just because the long answers have eaten up so much space. So I appreciate the clues picking up the slack, elevating a lot of the short answers.
SCREEN, for example, could be a pretty blah word if clued as [Projector ___] or something. Getting a misdirection with [One getting the picture] makes it stand out. MENDEL is already pretty good, but punning on his work with genetics through peas makes it even better. And my favorite, [Easily taken in?] has nothing to do with being a fool, but everything to do with foods that are TASTY. There is so much great cluing here today.
It might be a little much for non-baseball fans today. For those of you still confused on the clue for STRIKE ZONE, "battery" is slang for a pitcher / catcher combination. I liked the idea behind that clue, but I don't think of portable batteries having halves. Perhaps something more along the lines of [What a certain battery terminal is next to?] would have been more devious? Alas, if you don't know baseball lingo, the clue's cleverness will be lost. Along with PNC Park (who knew?), and ON BASE, it felt a bit baseball-heavy to me. Then again, Pete's a baseball fan, and why shouldn't a constructor favor his/her hobbies and interests? It is nice to get the variety.
What with the rigid skeleton and those two big open corners, it's not surprising to get a bit of glue here and there. The WAITE / GIMEL crossing will be tough for some, and although I know TRANE well from my mechanical engineering days, it's also going to be tough. The constraints and trade-offs can be most strongly seen in the tough SW and NE corners, where we get a smattering of TPKE / AS AN / IT HAS, and the DRS / SSGT corner. And as much as I love "Casablanca," even I have a hard time putting UGARTE into puzzles.
Neat construction, nice to see all those 15's anchoring the puzzle. And delectable clues today, a filling palate. I'll finish with my favorite, [Drop in library use?]. It's a beautifully-written clue for a place books get dropped... a BOOK RETURN.