Possible Clues:

• 'Menace, intimidate (8)'
• Put in jeopardy
• Give an ultimatum to
• Warn someone that you may inflict harm
• Menace that Rene took apart
• Promise then about to tear it in bits
• End a sentence with 'or else!'
• Menace Tehran perhaps, taking time and energy
• Cow, time and time again, processed as food
• Menace in 1810