Clear (of tax) (4)
I believe the answer is:
nett
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">clear of tax</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for nett that I've seen before include "Free of tax" , "Left after deductions" , "Opposite of gross" , "Clear of deductions" , "Final" .)