It's getting hot in here

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Across
  1. 3. That distinctive Mediterranean sound, the small, loud, creatures
  2. 6. 'Thongs' in Australian, 'Jandals' in New Zealand... (4,5)
  3. 9. Apply after the fact
  4. 10. A typical hangout place, good for parties in the summer (7,4)
  5. 12. What saves lots of us during the hot nights (3,12)
  6. 15. That lovely cold sweet beach treat
  7. 17. A period of very hot weather (general term)
  8. 18. Shades
  9. 20. It dries when it get's wet... (Famous riddle)
  10. 21. All the brits abroad get __ and turn lobster-red
Down
  1. 1. Big and inflatable and round, good in pools and water (5,4)
  2. 2. The big umbrella in pub gardens (Spanish origin)
  3. 4. What you get if you spend too long in the sun (can be serious)
  4. 5. popular sea vehicle in the summer
  5. 7. Things you used to make on the beach as a kid (4,
  6. 8. Small secluded beach
  7. 11. More typical in English summers, lots of meat usually
  8. 13. Period of very dry weather
  9. 14. What happens when you get hot (verb and noun)
  10. 16. Something you can lie in and relax, often between two trees
  11. 19. A very very hot day/period (bochorno!)