Answer:

TOIL

AnswerCrossword Clue
TOILWork Hard
TOILWork like a slave
TOILApply elbow grease
TOILDrudgery
TOILGrind
TOILHard work
TOILSlave away
TOILWork hard
TOILSlog
TOILWork like a drudge
TOILWork up a sweat
TOILUnloved work
TOILWork like a dog
TOILLabor
TOILPlug away
TOIL"I have nothing to offer but blood, ..., tears, and sweat": Churchill
TOIL"..... and trouble": "Macbeth"
TOILDrudge's work
TOILExertion
TOIL"Bubble, bubble, .. and trouble ..."
TOILArduous effort
TOILTrouble partner, in Shakespeare
TOIL"Macbeth" witches' word
TOILPut in long hours
TOILOne of Churchill's four offerings
TOILSlave
TOILExhausting effort
TOILLabor long hours
TOILRaise a sweat
TOILWork
TOILWearisome work
TOILExert exhausting effort
TOILDrudge or trudge
TOILTrudge or drudge
TOILBreak one's back
TOILSweat and strain
TOILSweat
TOILPerform backbreaking labor
TOILSweat of one's brow
TOIL"Double, double ... and trouble".WS