Emilie's Birthday Cryptic

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Across
  1. 2. Hear leg joint with youthful hideout in ends
  2. 5. heads of learners and the babies are bonded
  3. 6. location for bonding is opposite East, open land
  4. 8. Rosey glow and dilated facial vessels
  5. 9. Cows speak with feline friends, one wine
  6. 11. Welsh university houses urban gorges
  7. 12. Disadvantages of copper with charged atoms are brain altering
Down
  1. 1. refreshing morsel is citrus sphere
  2. 3. country has weirdly bad user interface
  3. 4. curry and church prayer joins a man
  4. 7. saharan abode leapfrogs over the knot
  5. 10. vehicle container starts yellowing like industrial citric acid