Possible Clues:

• In The Hamlet of Archibald Macleish, we find that we have learned them all
• Examine alternative for Priestley's caller
• In compost, mushrooms raised for one to check
• Script one revised for examiner
• Police officer gets a burden from Peter Carey?
• Official reforming prison etc
• Person I bumped into outside the court: police officer
• 'Tec wandering around in prison, possibly a senior cop
• Ex a miner?
• Person whose job it is to examine efficiency as in schools