Related Clues:

• Onus
• Tell tale item
• Binding obligation
• See 22 Across
• Type of tie
• You might take one after a concert
• Violist's need
• Show deference
• Violin player's need
• Arrow's shooter
• Fiddle stick?
• Reaction to an ovation
• Arrow launcher
• Military obligation, e.g.
• Red-carpet treatment