Wins every game (6)
I believe the answer is:
sweeps
'wins every game' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for sweeps that I've seen before include "Clean with a broom" , "Cleans the floor with a brush" , "Clears with a brush" , "Old blackguards" , "Moves in an arc" .)