Raucous crowd (6)
I believe the answer is:
rabble
'raucous crowd' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for rabble that I've seen before include "Hoi polloi" , "Person who stirs up feeling of mob" , "A mob of riffraff" , "Disorderly, loud crowd" , "Unruly mob" .)