Brainscratch Puzzle

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Across
  1. 5. 2020's worldwide event (5)
  2. 7. ___(3)Nations (3)
  3. 8. Longest river in the uk(6)
  4. 10. dice _____ (5) - a completly nonsensical device
  5. 11. Golf warning (4)
  6. 13. Original performer of Alphabet Aerobics (13)
  7. 15. the action of communication or meeting (7)
  8. 17. past term for eat
  9. 18. Nickname of Dr. Temperance Brennan (5)
Down
  1. 1. a time of celebration in the month of december
  2. 2. German for no (4)
  3. 3. 1922 silent horror film (9)
  4. 4. an epidemic occuring worldwide (8)
  5. 6. of recent origin or arrival (3)
  6. 9. able to move freely (6)
  7. 11. the number of pips on a die on the side opposite that with three pips (4)
  8. 12. panic at the disco - ____(4) in the afternoon
  9. 14. a "kinda gross" word (5)
  10. 16. Exclamation of surprise (2)