Loud and biased form of amusement (7)
I believe the answer is:
funfair
'form of amusement' is the definition.
(I know that funfair is a type of show)
'loud and biased' is the wordplay.
'loud' becomes 'f' (short for forte - 'loud' in music).
'and' is a charade indicator (letters next to each other).
'biased' becomes 'unfair' (similar in meaning).
'f'+'unfair'='FUNFAIR'
(Other definitions for funfair that I've seen before include "Amusements here" , "entertainment for the family?" , "Amusement park" , "Swings and roundabouts" , "place of amusement" .)