Related Clues:

• Soft mud
• Post-blizzard mess
• Winter annoyance
• Post-blizzard stuff
• Gloppy snow
• Partly melted snow
• Plumbing nuisance
• Reason to wear boots, perhaps
• Half-melted snow
• Wet winter nuisance
• Muck, slime
• Partially melted snow
• Thick greasy mud
• 'Muck, slime (6)'
• Thick, soft, wet mud