Related Clues:

• Cobra's cousin
• Tree-dwelling snake
• Moccasin, for one
• River through Idaho
• Plumber's helper
• Indy Jones' bugaboo
• Cobra or copperhead
• Caduceus animal
• Sidewinder, e.g.
• Frequent lawbreaker on 'The Simpsons'
• Wind around
• Viper for one
• Wind, as a river
• Slithering reptile
• Rattler, for one