Bit of work (3)
'bit of work' is the definition.
(unit of work in physics)
This is the entire clue.
(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.)" .)
'bit of work' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for task that I've seen before include "Chore, job." , "Assignment" , "Give mission" , "Job, undertaking" , "something to do" .)