Related Clues:

• Loose cannon, e.g.
• Dennis, to Mr. Wilson
• Speculator's concern
• Take a chance
• 'Hold it right there!'
• Daredevil's desire
• Grave risk
• Security problem
• Fighting words
• Take a shot at
• ''Not so fast!''
• Imperil
• It's measured by the odds
• Cry made while the reins are pulled
• Hold your horses!