Another very tricky one, I thought. One unsolved:
24a Bother to empty fluid on edge (5)
?R?N?
I can think of lots of answers it might be, but can't justify any of them to my satisfaction.
Also 11a Water engineer blocked by one judge (8)
I?R?G?T?
Pretty obvious what the answer is, but the parsing entirely escapes me.
Any hints on either?