Related Clues:

• Were in session
• Relaxed, in a way
• Was a wallflower
• Took a seat
• Won at musical chairs
• Used 21-Across
• Opposite of 31-Across
• Didn't get in the game
• Prepared for the show to start
• High-school sr.'s exam
• HS sr.'s exam
• Didn't lose at musical chairs
• Was immobile, in a way
• Had a seat
• Pulled up a chair