Related Clues:

• Move sinuously
• Go over and over
• T. Rex, for one
• Despicable sort
• Despicable person
• Creepy one?
• Gator or gecko
• Blockage remover
• Deceitful sort
• Grass inhabitant?
• Coral, for one
• Double-crosser
• Cold-blooded vertebrate
• Plumber's tool
• Adder, e.g.