Related Clues

• Instant when the light goes on
• Flash of understanding
• Light-bulb-over-the-head instance, and a hint to 17-, 24-, 36- and 53-Across
• Clicking point
• Epiphany
• When you get it
• Lighting event?
• Puzzle solver's breakthrough, e.g.
• Man at home is excited getting it
• When the light bulb turns on
• *Light-bulb-over-the-head instance
• Sudden insight ... with a hint to 17-, 24-, 40- and 50-Across
• Instant of insight
• Puzzle solver's epiphany
• Flash of inspiration
• Flash point?