What is it?

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Across
  1. 2. Never ages
  2. 4. used in gold mines
  3. 6. dribble dribble
  4. 8. This one can be attached to screen or separated
  5. 11. What your friends feel towards you
  6. 12. tech shop across our house
  7. 15. good at plumbing and drainage
  8. 17. the people you love
  9. 18. your natural instinct
  10. 19. open to all citizens
  11. 20. costs a pretty penny
Down
  1. 1. take it anywhere
  2. 3. good for one purchase
  3. 5. after one pm
  4. 7. game in session
  5. 9. what you do daily
  6. 10. you through and through
  7. 11. plumbers best feline friend
  8. 13. What you don’t do enough of
  9. 14. My cousin left for far off lands
  10. 16. Probably where you’ll get your gift