Crossword Genius

To put the ____ on something is to end it (6)

Ross

I believe the answer is:

kibosh

(Other definitions for kibosh that I've seen before include "In slang, put the . . . . . . on - end it" , "Hibs O.K. (anag) - put a stop to" , "Terminate" , "Put the mockers on" , "Put this on something and stop it from happening" .)

I've seen this clue in The Sunday Times and The Times.
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