Possible Clues:

• Porthos and Aramis's buddy
• Literary swordsman
• One of a French trio
• Musketeer's pitiable state, having blown head off
• Mountain area, but smooth at first
• 'The world's great empress on the Egyptian plain'
• Dumas swashbuckler
• One of three expletives must have nothing dropped
• Familiar name of the Comte de la Fere
• 'Twenty Years After' character