Answer: workhouse

AnswerCrossword Clue
WORKHOUSEJail of a sort.
WORKHOUSEWhere poor Brits labored
workhouse(historical) a place for old people who can no longer support themselves
workhouseA prison in which petty offenders are expected to work
workhouse(in the UK) A public institution in which the destitute of a parish received board and lodging in return for work