Musician bungling an exam (6)

I believe the answer is:

axeman

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'musician' is the definition.
I know nothing about this answer so I can't judge whether this works.

'bungling an exam' is the wordplay.
'bungling' indicates an anagram (I've seen this in other clues).
'an'+'exam'='anexam'
'anexam' anagrammed gives 'AXEMAN'.

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(Other definitions for axeman that I've seen before include "Guitarist (slang)" , "guitar player" , "Ruthless cutter of costs (informal)" , "who may give others the chop!" , "Killer" .)

I've seen this clue in The Times.

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