Bagged (anag) — complete rotter! (3,3)

I believe the answer is:

bad egg

(Other definitions for bad egg that I've seen before include "Rotter - something rotten!" , "Dishonest person like addled ovoid" , "Was the cartoon curate presented with one" , "wicked person?" , "Unpleasant person" .)

I've seen this clue in The Guardian.

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