Artist's hat (5)
I believe the answer is:
beret
'artist's hat' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for beret that I've seen before include "Soft peak-less kind of cap" , "Frenchman's flat hat" , "item of headwear" , "French-style hat" , "Soft round cap without a peak" .)