Unattributed, somewhat uncanonical (4)

I believe the answer is:

anon

'unattributed' is the definition.

'somewhat uncanonical' is the wordplay.
'somewhat' indicates a hidden word.
'ANON' can be found hidden inside 'uncanonical'.

(Other definitions for anon that I've seen before include "devoid of credit" , "Immediately" , "Presently - or unknown" , "Writer unknown" , "Having no known name" .)

I've seen this clue in The Everyman puzzle in The Observer.

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