All answers will have 8 letters with the same 2 middle letters.
In some cases I will give the first letter.

-1. An extremely contagious and deadly virus. First letter s

-2. Showing dogged determination not to change one's attitude or position on something.

-3. Refuse to give something that is due to or is desired by another. w

4. The art of riding and training a horse. d------e

-5. A green variety of cabbage eaten as a vegetable. b

-6. A raised wooden platform. s

-7. Music performed with each note sharply detached from the others. s

-8. Leave someone trapped and isolated on an island.

-9. A former British coin.

-10. A sheath for the blade of a sword or dagger. s

5. Brussels ?

Try again ob.

9. Shilling - Hi Curly

Bernie

Good one Bernie.

2. Stubborn
Enjoy your day curly!

Thanks Gerry.

7. staccato

Good one Joan.

10 - scabbard

1. smallpox

Two more good ones.

5. broccoli

Thanks mxm.

3. withhold Morning Curly

6. scaffold

Thanks. Hi Cue.

8. marooned

Thanks mxm.

4. Dressage

Bernie

Merci Bernie.