Related Clues:

• Water barrier in Canada maybe
• Obstacle for a fish
• Container of water?
• Sire’s mate
• Mother wanting nuts sent around
• Ewe, to a lamb
• The world's largest one is in Hubei, China
• Beaver's building project
• Beaver-built structure
• Mother's Day morning
• Horse's female parent
• Power structure of a sort
• Water barrier used by armada maybe
• Hydroelectric power station
• Moat feature