Bath rug (3)
I believe the answer is:
mat
'bath rug' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for mat that I've seen before include "Rug; without a shine" , "knot" , "Small rug" , "Piece of material for wiping feet on" , "Paint with a dull surface" .)