Related Clues:

• In-form professional?
• He organises room with satchels scattered
• The classroom in turmoil? His respons­ibility!
• Informer on the mob
• Squealing sort
• Teaches to fish with tall upright pole on fair amount of the pier
• Group of swimmers before the race upset instructor
• He upsets some scholar about the beginning of term
• Teaches to fish with tall upright pole, the couple at end of pier
• Miss beginning to scoff her chocolate spread
• Mistress perhaps toying with her chocolates
• Act the stoolie
• Disloyal "rat"
• Inform on the mob, say
• Informer, in slang