Possible Clues:

• Detained without trial
• Worked for nothing when confined
• Kept under lock and key in The Apprentice - it's an eye opener for director
• Worked at a summer job, in a way
• Shut up trainee working on the paper
• Shut up trainee journalist
• Locked up
• Put down below, Edmund is deprived of freedom
• By the sound of it, it's in what's turned and shut up
• Bury Edward - that's shut him up