Possible Clues:

• Kid in the corner
• Wearer of a conical cap, once
• Poor student wearing a conical cap
• Moron
• An ignoramus, to demand payment from the church
• Poor scholar discovered by debt collector on outskirts of Cambridge
• Unflattering type of cap
• Pupil expected to absorb only first bits of National Curriculum?
• Halfwit
• A-student's antithesis