I had as much trouble with this as with yesterday's Prize (which was on the easy side for Prizes).
Wrote in 12 based on one definition (first 3 words of clue), but couldn't see the presumed second definition. Google gives another possibility, but I've never heard of the work in question.
22 also took a long time to figure out.
FOI 3, LOI 12.
COD tie between 1 and 13. Also liked 2, 8 and 9. Thanks to Everyman.