It can mean a clean sheet, love (3)

I believe the answer is:

nil

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'love' is the definition.
(love and nil mean zero in cricket and football)

I don't understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for nil that I've seen before include "none" , "Nothing - in Latin" , "0" , "Zero, no score" , "Don't despair - . . . desperandum" .)

I've seen this clue in the Evening Standard.

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