Related Clues:

• Jolly Roger, for one
• Stars and Stripes
• Paving slab
• Become limp
• Patriotic symbol
• Lose vigor
• It's worn on a road trip
• It may go flat
• See 64 Across
• Lose resilience
• Showbiz union
• Show weariness
• Start weakening
• Tucker out
• Be affected by gravity