King of bluff? (3)

I believe the answer is:

hal

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'king of bluff?' is the definition.
The definition suggests a singular noun which matches the answer.

This is the entire clue.

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(Other definitions for hal that I've seen before include "Henry (diminutive)" , "Henry, in short" , "Falstaff's Prince; 2001 computer" , "Man" , "Odyssean character" .)

I've seen this clue in the Evening Standard.

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