Am stuck on just 2. 11a. Eating it's wrong to start. (s-i-a) 18a. Amazed at Israeli high-wire performer in America. Have got 4d as 'All-American' but think this must be wrong.
8d. Maybe hopes to get right in form of oxygen region dangerously diminished. I have letters o-o-o-t-e-e. Last one I need. Pondered on it for ages. Maybe some of my letters are wrong.