Hilarious people (5)
I believe the answer is:
riots
'hilarious people' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for riots that I've seen before include "Acts of violence by unruly mobs" , "Protests" , "Violent disturbances" , "Public disturbances" , "Wild disturbances by crowds" .)