Possible Clues:

• He's in a class by himself?
• Classless one?
• Core content of lectures Queens' student at last absorbed — she's learning
• Alexander, to Aristotle
• Learner driver's space next to Centre in future
• Recipient of one-on-one help
• Student's expression of disapproval when obtaining low grade repeatedly
• Private lesson recipient
• Person in a class of his own?
• One in a class by herself?