Related Clues:

• Intent to harm, for one
• Words from a blackmailer, collectively
• Serious threat
• Ketcham's Dennis, for one
• Indication of imminent evil
• Reason for an evacuation
• Nuclear ___
• Threat or severe nuisance
• Source of danger
• The rat became a menace
• Intimidation or warning
• Danger, threat
• Menace of impending evil
• Jeopardy as on golf course
• Declaration of intention to harm another