Related Clues:

• Dutch tourist attraction
• Paddock parent
• Castle surroundings
• Water-control structure
• Castle guard
• It's not needed in a 55-Down
• Waterproof covering
• Castle crossing
• Where McLean drove the Chevy
• Diamond protector, briefly
• Anti-flood structure
• Irrigation project
• Dike
• Hoover, e.g.
• Field canvas