Sweeper (5)
I believe the answer is:
broom
'sweeper' is the definition.
(a broom sweeps things up)
This is the entire clue.
(Other definitions for broom that I've seen before include "Yellow-flowered shrub" , "one's often fitted in a cupboard" , "Long-handled brush" , "Sweeper (said twice for a car!)" , "Shrub and cleaning instrument" .)