Board game played out loud (4)

I believe the answer is:
ludo
'board game' is the definition.
(ludo is a kind of board game)
'played out loud' is the wordplay.
'loud' can be anagrammed to 'LUDO'.
But, I'm not sure how this is indicated.
Can you help me to learn more?
(Other definitions for ludo that I've seen before include "Simple board game, involving dice" , "Type of board game" , "Children's board game" , "Race game" , "Traditional board game" .)
