Nose that may need blowing? (5)
I believe the answer is:
organ
'nose that may need blowing?' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Maybe you can see an association between them that I can't see?
This is the entire clue.
Can you help me to learn more?
(Other definitions for organ that I've seen before include "Pipe or reed instrument" , "What makes use of full stops" , "The Times?" , "Medium; body part" , "means for communicating information" .)