Toil (6)

'toil' is the definition.
(I know that toil can be written as labour)
This is all the clue.
(Other definitions for labour that I've seen before include "See 1" , "End of term" , "unnecessarily elaborate" , "Painful time" , "Agonising time" .)
'toil' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for slog that I've seen before include "Work doggedly" , "Wild cricket hit" , "Very tiring work" , "Long tedious task" , "almighty wallop" .)
'toil' is the definition.
(I know that toil is a more specific form of the action work)
This is all the clue.
(Other definitions for work that I've seen before include "Toil" , ". . . get on with serious business" , "Earn a living" , "Labour" , "Function; task" .)
'toil' is the definition.
(sweat is a kind of toil)
This is the entire clue.
(Other definitions for sweat that I've seen before include "It's hard work" , "Toil" , "Salty fluid secreted by the body" , "(Of argument) intense" , "Male perspiration?" .)
'toil' is the definition.
(I know that toil can be written as labor)
This is all the clue.