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Behaved like an ass when drinking in Paris, and got cheated (8)

Ross

I believe the answer is:

betrayed

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(Other definitions for betrayed that I've seen before include "Was unfaithful" , "Was disloyal to (someone)" , "Was disloyal, assisted enemy" , "Denounced" , "Delivered to an enemy by treachery" .)

I've seen this clue in The Hindu.
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