One word in each answer is the name of a part of the Human Body. Please can you help? 1. Commercial Acumen. (3,3,8) 2. Is this Lubrication? (5,6) 3. Item from "ll Trovatore". (5,6) 4. Elderly. (4,2,3,5) 5. Pugilistic Trade-mark. (11,3) 6. Cure for Indigestion. (5,5) 7. Risking Everything. (4,2,7) 8. Slovenly. (4,2,4) 9. Concede defeat. (5,2,4,4) 10. Refuse to Listen. (4,1,4,3) 11. Nonsense. (3,2,3) 12. In a Difficult Situation. (2,1,3,4) Thanks in Advance to you all.