Yields and comes back (7)
I believe the answer is:
returns
This clue is a double definition.
'yields' is the first definition.
('return' can be a synonym of 'yield')
'comes back' is the second definition.
('return' can be a synonym of 'come back')
'and' is the link.
(Other definitions for returns that I've seen before include "Throws made by cricketers" , "Hands back" , "Profits" , "Brings or comes back" , "Tickets possibly available" .)