Each answer is a single word, that both starts and finishes with the letter O
1. A wafer biscuit with cream filling
2. The second-largest city in Portugal
3. A word meaning "oil", a type of shock absorber found on aircraft landing gear
4. A large musical composition for an orchestra, sometimes involving a choir.
5. River of South America
6. A herb
7. A city that has 40 islands within its limits
8. The title of a biography by Virginia Woolf, in which she describes the life of her lover
9. Shakesperian character
10. A pamphlet made up of one or more full sheets of paper on which 16 pages of text were printed, then folded three times to produce eight leaves.