Related Clues:

• Go-ahead
• 'Ah!'
• Expression of understanding
• Doze (off)
• 'Clear as day'
• Incline
• 'Gotcha'
• Drop off
• 'Got you'
• Green light
• 'Mm-hmm!'
• 'So that's it!'
• 'Things are becoming clear'
• Comment made with a nod
• Psychiatrist's reply