Wrestling pad (3)
I believe the answer is:
mat
'wrestling pad' 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 "Rough piece of floor-covering" , "To wipe your feet on" , "Thick flat pad on the floor" , "Rug; without a shine" , "Floor-pad" .)