Crossword Genius

Mock failing after Liberal leaves (9)

Ross

I believe the answer is:

imitation

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'mock' is the definition.
(thesaurus)

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(Other definitions for imitation that I've seen before include "Simulated" , "created by the impressionist" , "produced by copyist?" , "Counterfeit" , "take-off" .)

I've seen this clue in The Telegraph.
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