Noisy celebrations (6)
I believe the answer is:
revels
'noisy celebrations' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for revels that I've seen before include "Carousals, high jinks" , "Has great fun with levers" , "Noisy celebrations" , "Noisy festivities" , "Celebrations with levers" .)