Related Clues:

• This has you confined to what is a century old, perhaps
• If a century old, one might be confined there
• Do you need century-old bars for this?
• Here one might be confined to being a century old
• Barred form being a century old?
• A matter of hundred-year-old bars?
• Bars make one a century old
• This will keep you in till you are a century old
• A century old for 12 across
• Bars this if it's a century old
• Being barred when a century old
• Place for batting practice
• Lab rat's home
• Nicolas of "Adaptation"
• Room at the zoo going back for example, to air-conditioning