Loud, disruptive game (4)
I believe the answer is:
ludo
'game' is the definition.
(ludo is a board game)
'loud disruptive' is the wordplay.
'disruptive' indicates anagramming the letters.
'loud' with letters rearranged gives 'LUDO'.
(Other definitions for ludo that I've seen before include "Children's board game" , "Simple board game, involving dice" , "Game (meaning 'I play' in Latin)" , "Race game" , "Loud sort of board game with dice and counters" .)