Makes after taxes (4)
I believe the answer is:
nets
'makes after taxes' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for nets that I've seen before include "'Traps for 29 dn, say (4)'" , "Cricket practice venue" , "Catches (fish)" , "Lacy curtains" , "Meshes to catch fish, say" .)