Unimportant person describing a weak wine (6)

I believe the answer is:

nobody

'unimportant person' is the definition.
(I've seen this before)

I can't explain the remainder of the clue.

(Other definitions for nobody that I've seen before include "problem for Morse?" , "Nonentity" , "Ineffective person" , "Insignificant person" , "Eg Pooter" .)

I've seen this clue in The Guardian.

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