Related Clues:

• At lunch
• Like a secret that's no longer secret
• About partner
• See 24 Down
• Locked, as a lavatory
• So last week
• Occupied (5)
• See 41 Down
• Not in the office
• Already occupied
• Unreachable, perhaps
• Terse dismissal
• Tagged on a diamond
• Caught off base
• Word with ''side'' or ''doors''