Possible Clues:

• The allusion is to an umpire around North Carolina
• Allusion to character?
• Recommendation by a former employer
• Allusion - character report
• Testimonial - allusion
• Mention having cup of tea skimmed
• Head of police with this is taste brought from one job to the next
• A. P. Herbert pointed out that there was none to fun in any Act of Parliament
• Library section
• See 6 Down