Thanks to Paul for, what was to me at least, a challenging but fun Prize, with a couple of Paulinesque clues for good measure.
FOI was 2d immediately followed by 4d.
I still haven't fully parsed 6d, where I can see the "near" homophone but, try as I might in a whole host of accents, I can't get the last 4 letters to sound anything like "line worker". If there were 2 specific letters that replaced the last one then yes, it would work - but there isn't?
My only other query is with 23a where, assuming I've parsed it correctly, I'm not sure "painter" is correct, dye or at a stretch 'paint' but not painter - but maybe I've got the wrong city?
COD is 17d. I'm not sure if it's just a coincidence but, in addition to having Paul's particular brand of humour and a lovely surface, it's also very topical:-
https://www.bbc.co.uk/sport/tennis/articles/cx2gr00ndmyo