One who may paint European performer (7)
I believe the answer is:
artiste
'performer' is the definition.
(artiste is a kind of performer)
'one who may paint european' is the wordplay.
'one who may paint' becomes 'artist' (some artists are painters).
'european' becomes 'E' (abbreviation e.g. EU).
'artist'+'e'='ARTISTE'
(Other definitions for artiste that I've seen before include "'Public performer, dancer or singer (7)'" , "Attires (anag.)" , "Trouper" , "Attires for professional entertainer" , "A sitter for a performer" .)