Related Clues:
- Thought hidden in eight long puzzle answers
- Inventor's first step
- Start of a plan
- A good one may come to mind
- Brain flash
- Creative flash
- Inventor's spark
- It starts with a germ
- Reason to shout ''Eureka!''
- ''The very'' item
- Prelude to an invention
- It's just a thought
- Invention
- Lightbulb's meaning, sometimes
- Birth of a plan