Related Clues:

• Profs' helpers
• Univ. instructors
• Prof. helpers
• See 6-Down
• Letters from Greece
• Brits' thank-yous
• Intro-level class teachers, often
• A prof. may have them
• Univ. teachers
• Lecture hall V.I.P.'s
• Profs' help
• College teachers, informally
• Coll. aides
• Univ. workers
• Ones having the burden of prof?