Guys may contribute to their support (5)
I believe the answer is:
tents
'guys' is the definition.
The definition and answer can be both man-made objects as well as being plural nouns.
Perhaps there's an association between them I don't understand?
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for tents that I've seen before include "Canvas shelters" , "Temporary shelters" , "Portable shelters" , "Accommodation" .)