Related Clues:

• Toxic ___
• Fang delivery
• Viper's poison
• Cobra product
• Not be economical
• Arsenic, for one
• Weapon alternative in mysteries
• Whodunit staple
• 'Spider-Man 3' villain
• If taken, it can harm or kill
• I spoon up the lethal substance
• Become gradually weaker
• ` ` ..... not, want not' '
• Toxin
• Toxin or venom