After a mostly quick one, I also struggled with 13 & 24. The first 3 letters of 24 isn't a word I'd ever use!
FOI 1a. For the COD I liked 12d because it sent me down several rabbit holes before I spotted the very simple answer
LOI 25a, which I have an answer for, but annoyingly for a 4 letter, word I can't parse. It seem there always has to be one I can't parse :))