Earned after taxes (6)
I believe the answer is:
netted
'earned after taxes' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for netted that I've seen before include "Obtained as clear profit" , "Gained as profit" , "Caught fish, perhaps, and made clear profit" , "Captured" , "caught in the wet?" .)