Related Clues:

• Post providing protection for old warrior
• Sound man for the post
• Letters - armour
• Flexible armour
• Post — armour
• Dispatch — armour
• It's deposited in drops
• Knightwear?
• Word after e or G
• 5-Across's business
• Word with "snail" or "chain"
• Letters delivered
• It's signed, sealed and delivered
• Junk __
• Postal Service delivery