French fauvist (7)
I believe the answer is:
matisse
'french fauvist' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for matisse that I've seen before include "20th century French painter" , "Henri -, C twenty Fr. painter, sculptor, illustrator" , "Henri --, French artist" , "Mae sits badly for the French painter" , "French painter, Henri, d.1954" .)