Related Clues:

• Clinical study
• Hospital administration?
• Reason to say "1, 2, 3..."
• Run up the flagpole, e.g.
• Hurdle of sorts
• Midterm event
• Do lab work
• It's sometimes made up
• With 16-Across, term climax
• Multiple choice, say
• Student stressor
• Event before vacation, maybe
• Diploma hurdle
• Give a whirl
• Not subject to any more changes