James, your answer for 24A looks the same as mine.
I never did go back and finish the last 2 word ladders, but I've just dug out my printed version and I have for 24A:
savers = (plural of) a type of account rather than the people who save
attendant on - no answer yet
queen - also part of the Thames
flag - a flower in the water
the other 'rungs' - nope!
I also can't get 1A 'colourist does his stuff to detectives'. Everything else fell into place, though with a couple of words I'd never heard of and an answer supplied by my crossword-hating husband when I was thinking only of synonyms for 'chapel'!