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