2: Poles suffer internally - they're hard (5)
3: Topics I am prepared to make congenial (9)
4: 4-down Arias hit high note in some of the lungs (3,3)
5: Ordering a meal is causing uneasiness (7)
6: Giant star, a Newton, gets allowances (7)
9: Main nerve carries most central portion (5)
11: What this puzzle is (3)