Possible Clues:

• One can't play it at school
• Someone not joining a class action?
• Make false turn at bunker
• '03 Alien Ant Farm album
• Not quite straight soldier failing to report for duty
• It's mostly accurate for worker out of education system
• Not quite loyal worker absent without justification
• Art nut replaced by one of those out of educational system
• AWOL pupil
• Schoolboy playing hookey