Woman's shirt (6)
I believe the answer is:
blouse
'woman's shirt' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for blouse that I've seen before include "Garment like a shirt" , "Woman's upper garment" , "Obelus (anag) - buttoned top" , "Female garment" , "Shirt-like garment for women" .)