Female performer removing current lock (5)
I believe the answer is:
tress
'lock' is the definition.
(both can mean a piece of hair)
'female performer removing current' is the wordplay.
'female performer' becomes 'actress' (I've seen this before).
'removing' is a deletion indicator.
'current' becomes 'ac' (alternating current).
'actress' with 'ac' taken away is 'TRESS'.
(Other definitions for tress that I've seen before include "Long piece of hair" , "Long lock or plait of hair" , "Rests (anag.)" , "Switch" , "Curl - lock" .)