Related Clues:

• Mailbox attachment
• Union Jack, for one
• Embassy identifier
• Union Jack, e.g
• Golf course sight
• Item with a pole position?
• Droop with tiredness
• A ref may throw one
• Iris — banner
• United Nations headquarters decoration
• It waves
• Signal to stop, with "down"
• Paving stone; iris; tire
• It is waved on the track
• Alf can come back to wave it