What is it?

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Across
  1. 2. somebody who is the father of you father
  2. 3. person who serves your food/drink at a restaurant
  3. 4. place where you see old paintings, etc
  4. 9. verb which describe like somebody very much
  5. 10. a place where you watch films
  6. 12. verb which means the opposite of leave
  7. 13. place where you take an airplane to travel
  8. 14. somebody who takes care of your teeth
Down
  1. 1. a person who isn't talkative
  2. 2. somebody who helps everybody
  3. 5. object which protects you from the rain
  4. 6. somebody who is the son of your uncle
  5. 7. place where you sleep
  6. 8. object which is used for cold days
  7. 11. kind of pants, which are usually blue