Won’t work when you try to light it (6)

I believe the answer is:

strike

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'it' is the definition.
The definition suggests a singular noun which matches the answer.

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(Other definitions for strike that I've seen before include "Deliver a blow" , "Hit out in industrial dispute" , "Hit the labour withdrawal" , "An industrial dispute, pickets out" , "Industrial dispute - everybody out" .)

I've seen this clue in the Evening Standard.

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