Thanks to Brockwell, who's becoming a star Prize setter.
Brockwell trademark theme!
In full agreement with roger. Had to google to verify a couple of thematics.
Solving time a hair over Prize median, so on the challenging side but great fun. The NE quadrant was most troublesome but rewarded the effort.
FOI also 1a.
LOI 4, which bewildered me but finally became evident from crossers.
Too many fine clues for a single COD. Prize split (in the order solved) by 24, 14, 11, 6, 7. Long list adds 21, 9, 17, 26, 1a, 8 and 16, so you can tell I thoroughly enjoyed the puzzle.