Loud confusing game (4)
I believe the answer is:
ludo
'game' is the definition.
(ludo is a board game)
'loud confusing' is the wordplay.
'confusing' is an anagram indicator.
'loud' with letters rearranged gives 'LUDO'.
(Other definitions for ludo that I've seen before include "Loud sort of board game with dice and counters" , "Traditional board game" , "Simple board game, involving dice" , "race for four tokens" , "Game (meaning 'I play' in Latin)" .)