Possible Clues:

• Man holding weapon stole, perhaps
• Coat perhaps for man without a limb
• Any item of clothing
• Some vulgar mention of item of clothing
• Toff conceals weapon in piece of clothing
• It's worn out great men heartlessly
• What the fellow, a Mr Turner, came in wearing?
• Grand painting, perhaps, has fellows in costume
• Maybe a jacket fellow's hung over part of chair
• Fellow carries gun? It's a habit