Optimise crossword

1. nervous and uncomfortable with other people
2. the act of giving, receiving, and sharing information
4. a plant product that has a strong pleasant smell and is used to season or flavor food.
6. a strip of material worn around the wrist
8. a person who supervises
9. having a voice that is low in pitch.
11. a person who professes absolute belief in something.
15. a person who rides or travels by motorcycle
17. to become popular or fashionable
18. any way of dressing, behaving, writing, or performing that is favored at any one time or place
20. electromagnetic waves with relatively long wavelengths and low frequencies
22. Make neat and clean
23. acquired after being used by another

1. relating to education between 11 and 18
3. a place where events of a specific type are held
5. by having a written message from a doctor that officially tells one to use a medicine
7. to take someone or something to a particular place, usually by car
10. the upper surface of a room that you see when you look above you
12. to grow toward or arrive at full stature or physical or mental maturity
13. the systematic study of the structure and behavior of the natural and physical world
14. the sport or activity of travelling down snowy slopes
16. not go to bed
19. a person who is visiting interesting places, especially on holiday
21. to send someone a letter, email, etc., in response to one that was sent.