Related Clues:

• Tied up
• Summoned
• Called the butler
• Sounded, as a bell
• 'You ___?'
• Busy
• Absorbed
• Occupied
• Kept
• Ushered (in)
• 'You ___?' (butler's question)
• Called up
• Registered, with 'up'
• Went off, in a way
• Summoned, as a butler