Related Clues:

• "Understood"
• ''I understand!''
• "That's it!"
• Sound of a light bulb going on?
• Cry of clarity
• ''I'm onto you now!''
• Taunting cry
• Jolly exclamation
• "What have we here?!"
• 'Well, whaddya know?!'
• Kin of 12-Down
• Light-dawning cry
• ''Well whaddya know!''
• "It was you!"
• Exclamation of revelation