Related Clues:

• Pillbox or porkpie
• It's sometimes passed for money
• Stovepipe, for one
• Exceed in importance
• Something to check
• Tricorn, for one
• It might go over your head
• See 9-Across
• See 11-Across
• Winter accessory
• 'Waiting for Godot' prop
• Magician's prop
• Eye shade
• Upstage
• Haberdashery item