Pipe of pipes (7)
I believe the answer is:
chanter
This could be a double definition.
'pipe of' is the first definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Maybe you can see a link between them that I can't see?
'pipes' is the second definition.
(I know that chanter is a Chanter)
Can you help me to learn more?
(Other definitions for chanter that I've seen before include "Pipe on set of bagpipes with finger-holes" , "Bagpipe melody pipe" , "Part of bagpipe" , "Pipe playing melody" .)