Needs to make a bit of cash! (3)
I believe the answer is:
has
'needs' is the definition.
('have' can be a synonym of 'need')
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for has that I've seen before include "Owns, holds" , "Contains" , "Eats" , "Possesses or owns" , "suffers from" .)