Benefit for female with sex appeal (6)
I believe the answer is:
profit
'benefit' is the definition.
('profit' can be a synonym of 'benefit')
'for female with sex appeal' is the wordplay.
'for' becomes 'pro' (I've seen this before).
'female' becomes 'f' (abbreviation).
'with' says to put letters next to each other.
'sex appeal' becomes 'it'.
'pro'+'f'+'it'='PROFIT'
(Other definitions for profit that I've seen before include "Use" , "bonus" , "Money made" , "Advantage, benefit" , "Surplus earnings" .)