A3

1234567
Across
  1. 4. their tusks if not worn down or broken might pierce their own skulls (5th letter)
  2. 5. one of the worlds smallest hoofed animals (1st letter)
  3. 6. Deer named similarily to a name used in graphs X Y (4th letter)
  4. 7. is a symbol of prosperity (5th letter)
Down
  1. 1. believed to be extinct in cambodia until it's rediscovery (6th letter)
  2. 2. Red dog like animal (3rd letter)
  3. 3. bearing marking of a king symbol in chinese (1st letter)