Underwear item (9)
'underwear item' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for bra that I've seen before include "Underwear item" , "one carrying chest" , "Chest supporter" , "support" , "I give a couple a lift" .)
(Other definitions for brassiere that I've seen before include "Female undergarment supporter" , "garment" , "support" .)