Open work after taxes (3)
I believe the answer is:
net
'after taxes' is the definition.
(as in net profits)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for net that I've seen before include "Mesh; entrap" , "Ultimate" , "Mesh; after tax" , "Catch; fine fabric" , "Tennis court feature" .)