A sound return (4)
I believe the answer is:
echo
This clue is a double definition.
'a sound' is the first definition.
(I know that echo is a type of noise)
'return' is the second definition.
(I have seen 'Return of sound' mean 'echo' so perhaps 'return' could also mean 'echo')
(Other definitions for echo that I've seen before include "Say again or imitate" , "Nymph; E (radio comms.)" , "Reflection of sound wave" , "Parrot" , "Reminder" .)