Related Clues:

• It'll hold water
• One that's holding back?
• Bank that may get in trouble?
• Impede
• Flood protection
• Part of a horse's pedigree
• Block
• Mississippi sight
• Equine mother
• Check the water?
• Flow stopper
• Water container
• Where Don McLean drove his Chevy
• Protective embankment
• Flood insurance of sorts