Cryptic crossword

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Across
  1. 4. An Oxford variety of hose (4)
  2. 5. Hide it away on the street with a call for silence
  3. 7. X turns up in the middle of a tennis court (3)
  4. 8. Fish may move on rollers(5)
  5. 9. South Africa and the Middle East are identical (4)
  6. 11. Ask to change the music if it’s like reggae (3)
  7. 14. Paid players for Spain loses out, though
  8. 17. Mend something if up before ten (3)
  9. 18. Sort of rose like a mountaineer (7)
  10. 19. Break for the kids when actors have to work (8)
  11. 21. It is not often found to wiggle right ear (4)
Down
  1. 1. Travel permit for six going to South Africa (4)
  2. 2. Accommodate one in school games group (5)
  3. 3. Grieve for the bearer of cones (4)
  4. 5. Male horse and its accomodation no one can mix
  5. 6. Light bulb fitting at end of rifle (7)
  6. 10. Sound art is, to my ears, very agreeable (5)
  7. 12. Fruit very quietly put in drink (5)
  8. 13. Garage always serves starters with petrol (3)
  9. 15. Gummed label for one who killed pigs (7)
  10. 16. Crawl southwest if first motorway is up (4)
  11. 20. Not many get iron at the start of the week (3)