Related Clues:

• See 21-Across
• 'Omigod!'
• 'Oh, no!'
• 'That's incredible!'
• See 30-Across
• Bloke
• See 41-Down
• Fellow
• Geezer
• Homo sapiens
• Cartoon cry
• Sound of surprise
• 'Egad!'
• Date or age beginning
• 'Good grief!'