Go after funds to take in United (6)
I believe the answer is:
pursue
'go after' is the definition.
('pursue' can be a synonym of 'go after')
'funds to take in united' is the wordplay.
'funds' becomes 'purse' (I've seen this before).
'to take in' indicates putting letters inside.
'united' becomes 'u'.
'purse' going around 'u' is 'PURSUE'.
(Other definitions for pursue that I've seen before include "Dog" , "Search for" , "Give chase" , "Follow up on or go after" , "Chase, run after" .)