Hunt Names Cryptic Crossword

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Across
  1. 1. Burnt out remains of Alaskan glacier to form a river with biting insects
  2. 4. Ageing noisy dog
  3. 7. 500kg
  4. 8. Sheep enclosure in rolling hillsides
  5. 10. Cover the face with leading cosmetic products
  6. 12. Town committing evil acts
  7. 15. Castle building mammal
  8. 18. Leave of absence because they couldn’t pronounce their “Th’s”
  9. 19. Short Star Wars hero in the trees
  10. 20. Mrs Beetle cooking sausages
Down
  1. 2. Tree in the grass meadow
  2. 3. Everyone heads to south coast resort and sees only trees
  3. 5. Feline equity investment
  4. 6. The bit with a restraint at the edge of the pavement
  5. 9. Murder Mr Livingstone
  6. 11. Light Emitting Diode in a hole covered in earth
  7. 13. Born in France with animal hair
  8. 14. Making a quartet of holes
  9. 15. Sheep singing tenor
  10. 16. Old Wound evident on a youth
  11. 17. Cover the face of a grey nag