Related Clues:

• 'You have no ___'
• Creative inspiration
• Future invention
• What a germ may become
• It starts in your head
• Invention's origin
• Think about it
• Flash of brilliance, perhaps
• Circus reaction
• Start of a solution
• Make a sound of shock
• 'Oh my!,' for one
• Inventor's ''light bulb''
• [Oh, my heavens!]
• It might be bright