Thanks to Philistine for a Friday the 13th (evening here in US) Prize.
It quickly became evident that the puzzle is themed, but my initial guess at the theme was incorrect and wasn't righted until about 2/3 of the way through.
About midrange in difficulty, though of course YMMV.
FOI 8, LOI 11 due to a mistake in 3.
3 winds up COD over a long list of contenders: 1, 15, 20, 22d, 9, 13 and 17 (evidently I enjoyed the puzzle). Several cleverly constructed anagrams.