Possible Clues:

• One may charge in old money
• Animal with a hood
• Highly venomous hooded reptile
• Foe of G.I. Joe
• A venomous snake
• Firm support for a king, for example
• Snake called king
• Poison injector produced by horse artist
• Snake that can flatten its neck
• Where to find the corn god in Egypt that's cold-blooded