:)

2. A light steady push against something small.
6. A secret plan by a group of people to do something harmful or illegal.
8. To remove information from a computer memory or recorded sounds from a tape.
9. Idea, plan etc is different from the one you have and can be used instead.
11. Better, more powerful, more effective etc than a similar person or thing, especially one that you are competing against.
12. To improve the quality of something, especially by adding things to it.
15. In or through the middle of a group of people or things.
16. A narrow path or road with a rough uneven surface, especially one made by people or animals frequently moving through the same place.
18. Formal great skill at doing something.
19. To use or spend a lot of energy etc in order to do something.
21. A change, discovery, or invention that brings progress.

1. An instrument that measures how far you walk.
3. When something or someone is liked or supported by a lot of people.
4. A place where an organized meeting, concert etc takes place.
5. A place where goods are sold to the public.
7. To change, or to make someone or something change.
10. The thing that is measured in minutes, hours, days, years etc using clocks.
11. To fully enjoy the taste or smell of something.
13. Short, with no unnecessary words.
14. To become or make something become lower in price or value.
15. A large quantity of something.
17. Wall, room etc is one that sound cannot pass through or into.
20. Artist, writer etc produces many works of art, books etc.