Related Clues:

• Grass inhabitant?
• Coral, for one
• Double-crosser
• Plumber's tool
• Adder, e.g.
• Herpetology subject
• Jackson Hole's river
• Untrustworthy sort
• Something fired
• Sparrow, in military defense
• It has sliding scales
• Weave in and out
• Plumber's aid
• Plumber's gadget
• Anaconda, e.g.