Stolen water? (6)
I believe the answer is:
solent
'water?' is the definition.
Both the answer and definition are singular nouns.
Perhaps they are linked in a way I don't understand?
'stolen' is the wordplay.
'stolen' can be anagrammed to 'SOLENT'.
Though, I'm not clear how the anagram is indicated.
Can you help me to learn more?
(Other definitions for solent that I've seen before include "sound" , "body of water" , "Channel separating Hampshire from the Isle of Wight" , "Strait north of Isle of Wight" , "Water to north of IOW" .)