Possible Clues:

• Bragging cowardly buffoon
• The boastful coward of commedia dell’arte
• Buffoon Mark rejected old woman — that hurt!
• Cowardly buffoon to buzz off stifling a cry of pain
• Stock character in Italian farce
• Stock character who appears as a boastful coward in commedia dell'arte and farce
• Boastful coward in drama
• Character who boasted about a split that's painful!
• Stigma, a mark that hurts blustery old coward
• Vehicle a doctor used, pinched by such a braggart