Related Clues:

• What comes to mind
• "What's the big ___?"
• Light bulb, in a cartoon
• Awareness
• Cerebral output
• "Why, the very ___!"
• Invention beginning
• Tribe symbol
• It can be big, bright, good or bad
• Pillar of American Indian society?
• Comic lightbulb
• Lightbulb source?
• Birth of a notion
• Noodle product?
• It's sometimes furrowed