Quietly tossed nappies and musical reeds (8)
I believe the answer is:
panpipes
'musical reeds' is the definition.
The answer and definition can be both man-made objects as well as being plural nouns.
Perhaps you can see an association between them that I can't see?
'quietly tossed nappies' is the wordplay.
'quietly' becomes 'p' (p for piano and quiet).
'tossed' indicates anagramming the letters.
'nappies' is an anagram of 'anpipes'.
'p'+'anpipes'='PANPIPES'
'and' is the link.
Can you help me to learn more?
(Other definitions for panpipes that I've seen before include "Musical wind instrument - syrinx" , "Primitive wind instrument" , "Musical instrument made of reeds of different lengths" , "Folk instrument" , "Simple wind instrument" .)