Bit of work (3)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">bit of work</span>' is the definition.<br/ ><span class="explanation-format__explanation">(unit of work in physics)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for erg that I've seen before include "What's used to record work" , "Shifting dunes in Sahara" , "Energy expended" , "shifting sand" , "Unit of work (phys.)" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">bit of work</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for task that I've seen before include "Chore, job." , "Assignment" , "Give mission" , "Job, undertaking" , "something to do" .)