Painter, say, with odd traits (6)
I believe the answer is:
artist
'painter say' is the definition.
(painter is a kind of artist)
'odd traits' is the wordplay.
'odd' indicates anagramming the letters.
'traits' with letters rearranged gives 'ARTIST'.
'with' acts as a link.
(Other definitions for artist that I've seen before include "Skilful, imaginative, performer" , "Skilled person" , "Constable possibly" , "Expert" , "eg Monet" .)