Related Clues:

• Really smart person
• MB's East ____ tree
• Scarecrow's desire in 'The Wizard of Oz'
• Shrewdness of British government, we hear
• Hard drive, essentially
• Scarecrow’s desire
• Thought producer
• Clever person hit on head
• Reason I'll get stuck into health food
• Organ with lobes
• Cerebrum's place
• The thought is there
• Bachelor artist, fashionable — bright guy
• Einstein hit on head
• 'The ___ -- is wider than the Sky' (start of an Emily Dickinson poem)