Gets information about the return from savings (4,3)
I believe the answer is:
nest egg
'savings' is the definition.
('nest egg' can be a synonym of 'savings')
'gets information about the return' is the wordplay.
'information' becomes 'gen' (gen can informally mean information).
'about' indicates putting letters inside.
'the return' says the letters should be written backwards.
'gets' put within 'gen' is 'ggetsen'.
'ggetsen' backwards is 'NEST-EGG'.
'from' is the link.
(Other definitions for nest egg that I've seen before include "Sum of money saved, as bird would" , "a little money?" , "Reserve funds" , "Money laid aside for some future eventuality" , "Fund for a rainy day" .)