Mimic overwhelmed by liquor, becoming impudent (8)

I believe the answer is:

malapert

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This clue could be a double definition.

'mimic overwhelmed by liquor' is the first definition.
The definition suggests a singular noun which matches the answer.

'impudent' is the second definition.
(thesaurus)

'becoming' acts as a link.

Can you help me to learn more?

(Other definitions for malapert that I've seen before include "Cheeky" , "Saucy" .)

I've seen this clue in The Hindu.

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