Band that makes sound (4)
I believe the answer is:
ring
I believe this is a double definition.
'band' is the first definition.
(a ring is a band of metal)
'sound' is the second definition.
(I know that ring is a type of sound)
'that makes' is the link.
(Other definitions for ring that I've seen before include "Circular object - sound" , "0?" , "Piece of jewellery" , "Chime" , "Contact" .)