Puzzle #50

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Across
  1. 3. A vertical market.
  2. 4. A decretal epistle.
  3. 7. To know.
  4. 8. A stubborn person
Down
  1. 1. A countdown.
  2. 2. Matter, thing.
  3. 3. The tone or sound emitted by an object
  4. 5. To make flat, smooth out.
  5. 6. Lineage, especially an honorable one
  6. 9. The other one; the second of two.