Garment under a blouse (3)
I believe the answer is:
bra
'garment under a blouse' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for bra that I've seen before include "support" , "one carrying chest" , "Female undergarment" , "I give a couple a lift" , "Underwear item" .)