Go after money you picked up for investment (6)
I believe the answer is:
pursue
'go after' is the definition.
('pursue' can be a synonym of 'go after')
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for pursue that I've seen before include "Dog" , "Seek" , "Engage in or chase after" , "Give chase" , "Follow, chase" .)