Talk about a duffer when it comes to games! (6)

I believe the answer is:

rabbit

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'talk' is the definition.
(rabbit can informally mean to talk)

I cannot understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for rabbit that I've seen before include "Inferior player" , "Person poor at games" , "Cony" , "Fur; chatter (colloq.)" , "Bit bar (anag.)" .)

I've seen this clue in the Evening Standard.

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