___ Mob, hip-hop collective from N.Y.C (4)

I believe the answer is:

asap

(Other definitions for asap that I've seen before include "Common acronym for quick-as-you-can" , "Initials notation meaning with all possible speed" , "Notation meaning without delay, fast as you can" , "At one's earliest convenience" , "Notation for urgent, quick as you can (4)" .)

I've seen this clue in The New York Times.

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