Possible Clues:

• Greek character in rear returning sword
• Blow that is with queen's sword
• So sharp it could rip your ear off.
• It's used fencing edges of Ravenna dock
• British surface-to-air missile, introduced in 1971
• Repair damaged fencing sword
• Weapon gives gunners massive support
• Symbol of sharp wit
• Long narrow sword
• Repair broken fencing tool