Possible Clues:

• One theatrically waited for
• 'Waiting for --', a play by Samuel Beckett
• Irritated about act someone waited for in theatre
• Title play character who never shows up
• Waiting for — (Beckett)
• Title character who never shows up
• Titular character with no lines
• On the stage he doesn't appear to withdraw dowry
• Vladimir and Estragon wait for him
• What some waiters never see?