Painter's wear (5)
I believe the answer is:
smock
'painter's wear' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for smock that I've seen before include "Artist's, peasant's, overall" , "Loose overall or dress" , "Artist's loose overall" , "Loose dress or blouse" , "artist's attire" .)