A pay-off that is succeeding (6)

I believe the answer is:

sequel

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I'm afraid I can't explain this answer.

(Other definitions for sequel that I've seen before include "Follow-up work" , "Upshot - what follows" , "A following episode wrapping up the plot" , "Something following an earlier event" , "Film continuing story of an earlier one" .)

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

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