Answer:

SLAVE

Answer	Crossword Clue
SLAVE	Esne
SLAVE	Work really hard
SLAVE	Spartacus, e.g.

SLAVE	Dred Scott, once
SLAVE	Canada's Great .. Lake
SLAVE	"Amistad" passenger
SLAVE	Great .. Lake
SLAVE	Toil
SLAVE	Verdi's Aida, e.g.
SLAVE	Bond servant
SLAVE	Nat Turner, e.g.

SLAVE	Old plantation worker
SLAVE	Work hard
SLAVE	Amistad passenger
SLAVE	Emancipation Proclamation subject
SLAVE	Harriet Tubman "passenger"
SLAVE	Thirteenth Amendment beneficiary
SLAVE	Underground Railroad traveler
SLAVE	Dred Scott or Nat Turner

SLAVE	Work one's fingers to the bone
SLAVE	Computer peripheral
SLAVE	Work your fingers to the bone
SLAVE	"Amistad" character
SLAVE	Serf, essentially
SLAVE	Work too hard
SLAVE	Bust one's hump
SLAVE	Exploited worker

SLAVE	Joseph, while in Egypt
SLAVE	Dred Scott, e.g.
SLAVE	Put in long hours
SLAVE	Plug away
SLAVE	Spartacus, for one
SLAVE	Toil (away)
SLAVE	Drudge
SLAVE	"12 Years a ..."

SLAVE	Toiler
SLAVE	Wage -
SLAVE	Work day and night
SLAVE	Work like a dog
SLAVE	Work, work, work