Related Clues:

• Force to start
• Chill to the bone
• Make someone jump out of their skin in regulated races
• Hiccups cure, so they say
• Near-miss, perhaps
• Frighten son with protective custody
• Greatly frighten
• Say ''Boo!'' to, perhaps
• Should have some horsepower in point to point for one of the jumps
• Frighten son with worry
• Needless public alarm one cares about
• Panic when spot is discovered on middle of cheek
• Work in a haunted house
• Cause trembling
• Rustle (up)