Related Clues:

• Univ. instructors
• Prof. helpers
• See 6-Down
• Letters from Greece
• Brits' thank-yous
• Intro-level class teachers, often
• A prof. may have them
• Profs' help
• Coll. aides
• Univ. workers
• Ones having the burden of prof?
• Byes
• Profs may employ them
• Class leaders: Abbr.
• Profs' helpers, for short