Related Clues:

• 'So that's it!'
• 'So that's your game!'
• With 16-Across, depressed
• Suffix with czar
• 'The light dawns!'
• 'Oh, I see'
• Concert ending
• Opposite of 'huh?'
• ___ nutshell
• Next year's alumnus
• 'Of course!'
• ___ heartbeat (instantly)
• '___ moment'
• 'So, it's YOU!'
• Exclamation of discovery