Related Clues:

• Herons' haunts
• Covers completely
• Moors
• Marshlands
• Overwhelms
• Sticks in the mud
• Swampy spots
• Slows (down)
• Gets stuck, with 'down'
• Sticks
• Devours
• Inundates
• Rush sites
• Mucks up
• Quagmires