Correct but it isn't left (5)

I believe the answer is:

right

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'correct' is the definition.
(right can mean correct)

I cannot understand how the rest of the clue works.

(Other definitions for right that I've seen before include "Just - correct - title" , "Punch" , "Genuine" , "blue, politically" , "Starboard side" .)

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

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