Related Clues:

• Light bulb for Wile E. Coyote?
• Mood
• Novel thought
• Lightbulb, in comics
• Believe
• Revelation
• Have an inkling
• 'Any ___?'
• It's a thought
• It may be bright or novel
• Conceit
• Inventor's starting point
• Idea
• ''Why, the very ---!''
• It's all in your mind