Touch female fish (4)
I believe the answer is:
feel
'touch' is the definition.
(feeling is a kind of touching)
'female fish' is the wordplay.
'female' becomes 'f' (abbreviation).
'fish' becomes 'eel' (eel is a kind of fish**).
'f'+'eel'='FEEL'
(Other definitions for feel that I've seen before include "Leg (of mutton/lamb)" , "Fondle" , "impression" , "Find by groping" , "Perceive by touch" .)