Possible Clues:

• Composer responsible for huge offence in middle of aria
• ''Le Comte Ory'' composer
• Barber of Seville writer
• Middle-period Lawrence in Italy finds composer
• Composer from town in Italy
• Composer's very big error, participating in King and I
• Cross initially, to some extent he produced harmony
• Gioacchino ---, It. composer
• He composed operas, Lawrence appearing in one
• Composer and Antarctic explorer in one