Related Clues:

• Creative spark
• Just a thought
• Plan of action
• Lightbulb, in toons
• Light bulb for Wile E. Coyote?
• Novel thought
• React to your kid's long distance bill
• Lightbulb, in comics
• Revelation
• 'Any ___?'
• It's a thought
• Have a sudden inspiration?
• It may be bright or novel
• Conceit
• Inventor's starting point