Item waved at the conclusion of a motorsports race (9,4)

I believe the answer is:

chequered flag

(Other definitions for chequered flag that I've seen before include "Motor race ender" , "Standard" , "which is brandished after course complete" , "target for rivals in 12 [GRAND PRIX]" , "End of a motor race" .)

I've seen this clue in The Times.

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