Conceited, albeit vulgar? (6)

I believe the answer is:

snotty

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

I don't understand the remainder of the clue.

(Other definitions for snotty that I've seen before include "Conceited - foul with nasal discharge" , "Conceited in attitude" , "Haughty" , "Showing contempt, too big for one's breeches" , "Snobbish" .)

I've seen this clue in the Evening Standard.

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