A fixed, regular payment for work (6)
I believe the answer is:
salary
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">a fixed regular payment for work</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for salary that I've seen before include "(Employee's) pay" , "Stipend" , "Remuneration for Ray and Sal" , "Employee's remuneration" , "Regular income from employment" .)