Remove dirt and make a fortune? (5,2)
I believe the answer is:
clean up
I believe this clue is a double definition.
'remove dirt' is the first definition.
'make a fortune?' is the second definition.
'and' is the link.
(Other definitions for clean up that I've seen before include "Make a substantial profit" , "Put in order - gain financially" , "Make a great profit" , "Make a bundle" , "Win everything!" .)