Dissonance (5)
'dissonance' is the definition.
(I know that cacophony is a type of dissonance)
This is the entire clue.
(Other definitions for cacophony that I've seen before include "Caterwauling" , "Din" , "Loud discordant sounds" , "Harsh dissonant sound" , "Discordant mixture of sounds" .)
'dissonance' is the definition.
(noise is a kind of dissonance)
This is all the clue.
(Other definitions for noise that I've seen before include "Clatter" , "Sound, disagreeable perhaps" , "Row" , "Loud or unpleasant sound" , "Clamour" .)