Related Clues:

• Leak
• Mensa candidate
• Cerebral one
• 'If You Believe' musical, with 'The'
• Mensa contender
• Maestro
• Whom to 'ease on down the road' to see
• Nerdy type
• Expert, for short (Var.)
• Very clever one
• Intellectual
• Expert, slangily
• Wise man
• Emerald City VIP
• Shoot (by)