Cleans with a broom (6)
I believe the answer is:
sweeps
'cleans with a broom' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for sweeps that I've seen before include "Clean with a broom" , "Old blackguards" , "Clears with a brush" , "They clean chimneys with brushes" , "Moves in an arc" .)