Acceptable noise (5)
I believe the answer is:
sound
This could be a double definition.
'acceptable' is the first definition.
Both the answer and definition are adjectives. Perhaps they are linked in a way I don't understand?
'noise' is the second definition.
(I've seen this before)
Can you help me to learn more?
(Other definitions for sound that I've seen before include "Unimpaired" , "stretch of water" , "Measure depth" , "Fathom" , "Speaking" .)