Answer: turnkey

AnswerCrossword Clue
TURNKEYType of operation
TURNKEYJailer
TURNKEYWarder
TURNKEYFully equipped and ready to go
TURNKEYCertain prison guard
turnkeya person who has charge of a prison's keys
turnkeyperson who has charge of the keys of a prison; jailer
turnkeyfully equipped; ready to go into operation
turnkeyof, pertaining to, or resulting from an arrangement under which a private contractor designs and constructs a project, building, etc., for sale when completely ready for occupancy or operation
turnkeyone who has charge of a prison's keys