Possible Clues:

• Spiteful
• Spiteful half-dozen are ruined
• Evil at heart, become bad and spiteful
• Venomous six of the Romans die
• Hostile bomb has to go off
• Spiteful individual's heart has to die
• Malicious volume I pass on
• See one die like a snake
• Spiteful woman? Rot!
• See one die like a traitor?