Confront feminine expert (4)
I believe the answer is:
face
'confront' is the definition.
(I know that confront is a kind of face)
'feminine expert' is the wordplay.
'feminine' becomes 'f' (abbreviation listed in Chambers).
'expert' becomes 'ace' (ace can informally mean very good).
'f'+'ace'='FACE'
(Other definitions for face that I've seen before include "'Cheeks, mouth, eyes etc (4)'" , "Come up against" , "cheek" , "celebrity" , "Cope with" .)