Nothing you really like? (4)

I believe the answer is:

love

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'nothing' is the definition.
(love is zero in tennis)

I cannot understand how the rest of the clue works.

(Other definitions for love that I've seen before include "No score, sweetheart" , "Vole (anag.)" , "Score of zero at tennis" , "Romantic feeling" , "It's nothing in tennis" .)

I've seen this clue in The Globe and Mail.

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