Deprived of water (10)
I believe the answer is:
dehydrated
'deprived of water' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for dehydrated that I've seen before include "Dried out" , "Drained" , "like the Ancient Mariner?" , "thoroughly dry ..." , "Deprived of water" .)