Productivity (10)
I believe the answer is:
efficiency
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">productivity</span>' is the definition.<br/ ><span class="explanation-format__explanation">(thesaurus)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for efficiency that I've seen before include "Performance with speed and economy" , "State of working with minimum wasted effort" , "Economy in production" .)