Related Clues:

• Words of comprehension
• 'Uh-huh'
• Understanding words
• 'Gotcha!'
• Words of understanding
• Psychiatrist's response
• Celebrated
• 'Now I see!'
• Wrote down
• Words of enlightenment
• 'I understand now'
• Put down
• 'Now it's clear!'
• 'Oh, right!'
• See 20-Across