Possible Clues:

• Cavalry sword (Var.)
• Brit's blade
• Scabbard filler (Var.)
• Bares (anag.)
• Revolutionary bears a weapon
• Recall significant times restraining British cavalryman
• Composed bars ending with note that's sharp
• Sword penetrates a breast — just part of it
• Revolutionary times after importation of British weapon
• Sword bears being twisted