I am soooo! glad this amazing person has been recognised by Serpent. As someone who used to do this particular thematic, I'm flabbergasted at the one-place demotion because it was "deemed inappropriate"!!
Thanks to Serpent for a cracker of a puzzle:-)
PS.
9a - Deal with lake’s faulty flood management device? (5)
I have the answer but can't see where the T comes from (deal?) and I see the 'food' but don't get the "management device?" part.