Related Clues:

• Retired doctor's a space geek
• Stereotypical Geek Squad employee
• Do 10 crosswords in a row, say, with 'out'
• Brainy sort
• Future billionaire, perhaps
• Test fan, say
• Square since the '80s
• Dweeby, bookish type
• Brainiac, stereotypically
• Small, fruity candy
• Geeky, bookish sort
• Square, nerdy sort
• Jerry Lewis's 'Nutty Professor' was an early example of one
• Socially goofy one
• Adorkable one