Possible Clues:

• Taught by Oriental from old bank with English director
• Did time in detention centre perhaps and learned a lesson
• Enlightened, knowledgeable
• Taught to get old money in the river back there
• Well-read
• School leaver Dee goes back over old money
• Cadet due to get new order instructed
• Trained; learned
• Clever Conservative worried with bloke circling round
• Cadet due for promotion, having been taught well