Crossword Genius

Clean a lottery (5)

Ross

I believe the answer is:

sweep

I believe this is a double definition.

'clean' is the first definition.
(I know that sweep is a type of clean)

'a lottery' is the second definition.
(I've seen this before)

(Other definitions for sweep that I've seen before include "if clean, could result in a whitewash" , "Stroke at the crease" , "Grimes, say" , "Dust" , "long movement" .)

I've seen this clue in the Sydney Morning Herald.
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