The question body refers to both the shorter word and to the one with the two identical letters surrounding it.
The correct expected answer is the *long* word (i.e. the one with the twin letters attached).
-1. A tiny chirping note. 5 letters
-2. The solid oral medicament can do it. 6
-3. Develop a handgun. 8
4. First person at a musical performance. 3
-5. Set fire to the crème de la crème. 5
-6. Systematically train with a gold coin. 7
-7. Rank of the first woman. 5
-8. Poem of exaltation to a communication device. 5
-9. The British nobility visits every birthday. 6
-10. SMS from a former spouse. 4