A looser sort of dispersion system (7)
I believe the answer is:
aerosol
'dispersion system' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Perhaps there's a link between them I don't understand?
'a looser sort' is the wordplay.
'sort' indicates an anagram.
'looser' with letters rearranged gives 'erosol'.
'a'+'erosol'='AEROSOL'
'of' acts as a link.
Can you help me to learn more?
(Other definitions for aerosol that I've seen before include "can, probably" , "Spray creator" , "Pressurized container" , "Air-spray" , "Container with device for releasing contents as fine spray" .)