Painter of unusual traits (6)
I believe the answer is:
artist
'painter' is the definition.
(painter is an example)
'unusual traits' is the wordplay.
'unusual' indicates anagramming the letters.
'traits' with letters rearranged gives 'ARTIST'.
'of' acts as a link.
(Other definitions for artist that I've seen before include "Constable, perhaps" , "Skilled person" , "Painter in dire strait" , "Creative or skilful person" , "Eg, a painter" .)