Maybe it's me as a painter (7)
I believe the answer is:
matisse
'a painter' is the definition.
(Henri Matisse, 1869-1954, French artist)
'maybe it's me as' is the wordplay.
'maybe' is an anagram indicator.
'its'+'me'+'as'='itsmeas'
'itsmeas' is an anagram of 'MATISSE'.
(Other definitions for matisse that I've seen before include "Mae sits badly for the French painter" , "Leading fauvist painter, d. 1954" , "20th century French painter" , "French impressionist" , "French painter, Henri, d.1954" .)