Game crime-busters do it (6,7)

I believe the answer is:

squash rackets

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'game' is the definition.
(I know that squash rackets is a type of court game)

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

Can you help me to learn more?

(Other definitions for squash rackets that I've seen before include "put an end to fraudulent schemes" , "sport" , "Court action" , "they'll be needed in court" , "Game" .)

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

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