Related Clues:

• Electronic delivery
• It may be junk or registered
• User's morning reading
• See 5
• See 14
• Post of bodyguard
• 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?
• 'You've got --!'