Thanks to Tramp, a relatively infrequent Prize setter, for this week's feature.
Perhaps it's just fatigue after a long week, but I found this an extremely testing challenge, one of the tougher Prizes in recent memory. Enjoyed it, but now I have a headache and can't comment as much as usual. 😫
FOI 3, LOI the crossing combination of 10 and 2. Still not sure of the parsing of 10.
Had to focus so intently that I couldn't keep my usual list of preferred clues, but COD definitely 13. Many clues required heavy thought before the penny dropped, sign of a good (but hard) crossword.
Don't see a clear theme, but there's a bit of alliteration. Some less than obvious anagrams that required multiple crossers to proceed.
Curious about other posters' opinions. I also found last week's Prize difficult, but many thought it easy. 😂