Related Clues:

• 'Very interesting...'
• ''Thought so!''
• Cry when a light goes on
• ''Uh huh''
• 'Alles klar'
• 'The penny drops!'
• '___ dead people'
• Word of discovery
• It's clear near to 10's heart, say
• I've got it!
• Sudden understanding
• Cry upon figuring out 66-Across
• Words from a fortuneteller
• "Ah! Say no more"
• 'Mmm-hmm'