Quantity produced (6)
I believe the answer is:
output
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">quantity produced</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 output that I've seen before include "Amount of work done in given period" , "Amount produced, yield" , "Production, yield" , "Yield, end product" , "Production quantity" .)