Crossword Genius

Creep removes both names from rave report (6)

Ross

I believe the answer is:

ratbag

'creep' is the definition.
Both the answer and definition are singular nouns.
Perhaps they are linked in a way I don't understand?

I don't understand the rest of the clue.

(Other definitions for ratbag that I've seen before include "snake" , "unpleasant customer" , "bounder" , "One displaying bad form" , "Grab at (anag) - contemptible person" .)

I've seen this clue in The Guardian.
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