Loud, confusing pastime (4)
I believe the answer is:
ludo
'pastime' is the definition.
The definition and answer can be both acts as well as being singular nouns.
Perhaps you can see an association between them that I can't see?
'loud confusing' is the wordplay.
'confusing' indicates an anagram.
'loud' is an anagram of 'LUDO'.
Can you help me to learn more?
(Other definitions for ludo that I've seen before include "race for four tokens" , "Children's board game" , "Type of board game" , "Race game" , "Simple board game, involving dice" .)