Shouldn't the 53A clue start with "having"? It feels like it's cluing IS INTO if written that way.
I found this slightly less Sheydah-ish than #17 but it may be because that one has a bunch more names (that I didn't know - I remembered TITO from crosswordese and as a math student, the FOURIER clue was a nice piece of trivia). I got the wordplay in TORSO and CAPRI quickly but STGEORGE got me good, I was expecting some kind of British spelling.
I'm currently working on a themeless and I was thinking about making it roughly Sheydah-hard, so seeing this in recent puzzles was a nice surprise!