Related Clues:

• The willies
• Very involved
• One of the great motivators
• "In time we hate that which we often __": Shakespeare
• Cause of some quaking
• Adrenaline trigger
• Expect with alarm
• Emotion conquered by daredevils
• Be scared of
• Cause of white knuckles
• More than just butterflies
• Courage opposite
• Apprehensiveness
• Cause of quaking
• North Carolina cape