Complete the crossword using the clues given.

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Across
  1. 3. What'll you be if you are helically attached to an inclined plane? (7)
  2. 4. They make the bedrock. (11)
  3. 6. The story of Eliza Doolittle. (9)
  4. 7. Where are the undies, Superman? (5+6)
  5. 12. The largest human organ. (4)
  6. 13. The capital of Denmark. (10)
  7. 15. Doth mother know thou weareth her drapes? (4+5)
  8. 17. The wolf of a true Stark. (5)
  9. 18. Silica in their bodies. (7)
Down
  1. 1. Wand of _____, never prosper. (5)
  2. 2. The Geek Goddess of Maidens. (7)
  3. 3. Here's a soft kitty. (7+6)
  4. 5. The wife of Jehangir. (9)
  5. 8. The first IVF baby (5+5)
  6. 9. Common Name of Ferrous Ammonium Sulphate (4+4)
  7. 10. Plagued by pigs. (5+5)
  8. 11. Not all who wander are lost. (7)
  9. 13. Fire in the hole. (8)
  10. 14. A Spanish dance modelled after bullfighting. (4+5)
  11. 16. Don't touch Lola.(6)