Lie in wait for a slight change of luck (4)

I believe the answer is:

lurk

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'lie in wait' is the definition.
(thesaurus)

I can't explain the remainder of the clue.

(Other definitions for lurk that I've seen before include "Loiter with intent" , "Lie in ambush" , "Behave in a sneaky and secretive manner" , "Lie hidden" , "Skulk, hide" .)

I've seen this clue in the Evening Standard.

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