Takes away fish (5)
I believe the answer is:
skate
'fish' is the definition.
(skate is a kind of fish)
'takes away' is the wordplay.
'away' is an anagram indicator.
'takes' with letters rearranged gives 'SKATE'.
(Other definitions for skate that I've seen before include "Runner" , "Type of ray" , "Takes off like large flatfish" , "move around ice" , "Ice-gliding blade; fish" .)