A percussion instrument brought back in a car amuses all (6)

I believe the answer is:

maraca

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'a percussion instrument' is the definition.
(I know that maraca is a type of percussion instrument)

I cannot understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for maraca that I've seen before include "one easily rattled?" , "Instrumental gourd" , "One of a pair used by Spanish dancer" , "Rattle used as a rhythm instrument" , "Instrument made from a filled gourd" .)

I've seen this clue in the Sydney Morning Herald.

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