Related Clues:

• Cheese ___ (person who's really good at making spray-can cheese)
• Computer expert, slangily
• Ace or phenom
• Expert or maven
• Zoom (by)
• Expert welcome to probe crux of 'howzat'
• Impressively skilled person
• 'Gee ___!'
• Someone dazzlingly skilled in a field
• Smarty pants