Crossword Genius

Shake one's head seeing litter (6)

Ross

I believe the answer is:

refuse

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'litter' is the definition.
(I've seen this before)

I can't explain the rest of the clue.

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(Other definitions for refuse that I've seen before include "Decline to take the rubbish" , "'Deny, turn down (6)'" , "Turn down - rubbish" , "Junk" , "Waste, garbage" .)

I've seen this clue in The Telegraph.
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