Express some power snag (7)
I believe the answer is:
whatnot
'express some power snag' 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 don't see?
This is the entire clue.
Can you help me to learn more?
(Other definitions for whatnot that I've seen before include "Stand with shelves for small items" , "This piece of furniture" , "Portable ornament stand" , "Stand with shelves - knick-knack" , "Portable stand with shelves" .)