Related Clues:

• Hardly a good friend
• Slum sight
• Rodent pet
• Water __
• False friend
• Rizzo the Muppet, for one
• Sewer sight
• Musk follower
• Two-timer
• Maze traveler
• Drainpipe discovery
• Owl prey
• Betray, with "on"
• Weasel's prey
• Runner of an experiment?