Related Clues:

• Master
• Mentor
• Coach
• Guide
• Pedagogue
• Instructor
• One who might stand in front of a map
• Plato, to Aristotle
• Head of the class?
• Class leader
• Sub, perhaps
• 4-Across, to Aristotle
• Classy sort?
• Instructor, educator
• 'Instructor, educator (7)'