Related Clues:

• They may be shot by coppers during swoops
• Police beginning to wear rifles, they're sometimes shot
• A drip's getting worse, becoming lots of quick-flowing water
• A spider in trouble -- 'e disappears in fast flowing water
• Niagara __
• Rafter's challenge
• Froth-topped flow
• Big drop of water
• Drops of water
• Obstacle for canoeists paddling initially in storms
• Wrestling rounds
• Fast-flowing part of a river
• Niagara attraction
• Rounds of wrestling
• Whitewater rafting challenge