Commotion mostly in genuine rejection (7)

I believe the answer is:

refusal

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'rejection' is the definition.
(I've seen this in another clue)

I can't explain the remainder of the clue.

(Other definitions for refusal that I've seen before include "Stop by fence" , "First this is first choice before others" , "The act of saying no" , "Turning-down; denial" , "Failure to accept" .)

I've seen this clue in The Telegraph.

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