Related Clues:

• Code of behaviour set down by first army officer?
• Formal code could be a 24 down in the making
• Poor clot breaks the rules of etiquette
• Cool port to be drunk, which is by the rules
• Procedure or system of rules
• Professional to telephone, reportedly, on top of watching Ps and Qs
• In favour of getting to Colonel for agreement
• Diplomatic formality
• In favour of getting to army officer at convention
• Good form shown by first officer?
• Rules of procedure
• Formalities Blimp's image promoter observed?
• Draft treaty Public Record Office has to pass
• Official procedure
• Expert to pass code