Related Clues:

• Mouse's cousin
• Sewer scurrier
• Deeply engrossed
• Hamelin vermin
• Hardly daydreaming
• Tell on
• Maze scurrier
• "Wind in the Willows" character
• Treacherous one
• Unpopular singer?
• Cheese lover
• Very impressed
• Snake in the grass, e.g.
• One not to be trusted
• Squeal on