Egg beater or another kitchen utensil (7)

I believe the answer is:

chopper

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'egg beater' is the definition.
(I've seen this in another clue)

I cannot understand how the rest of the clue works.

(Other definitions for chopper that I've seen before include "Lizzie Borden" , "Hatchet" , "An axe, or a slang helicopter" , "Butcher's cleaver" , "Motorbike" .)

I've seen this clue in The Times.

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