Bore torn dress (4)
I believe the answer is:
robe
'dress' is the definition.
(I know that robe is a type of dress)
'bore torn' is the wordplay.
'torn' indicates an anagram.
'bore' anagrammed gives 'ROBE'.
(Other definitions for robe that I've seen before include "Loose outer garment" , "official dress" , "Loose or formal garment" , "Clobber" , "Clerical garment" .)