Fish will do for me! (4)
I believe the answer is:
char
This clue could be a double definition.
'fish will' is the first definition.
'char' can be an answer for 'fish' (I've seen this before). I'm unsure of the 'will' bit.
'do for me' is the second definition.
'char' can be an answer for 'do' (I've seen this before). I am not certain of the 'for me' bit.
Can you help me to learn more?
(Other definitions for char that I've seen before include "Tea - cleaning lady" , "Tea (sl.)" , "Perhaps overheat" , "House cleaner" , "Partly burn - cleaning woman" .)