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Across
  1. 2. A thin, slippery mix of clay and water.
  2. 4. The morning twilight period immediately before sunrise.
  3. 7. A systematic non-narrative presentation of data.
  4. 8. The amount of bending that something undergoes when a force is applied to it; a tendency to yield under pressure; resilence.
  5. 9. The ensemble of left-wing political parties. Those holding left-wing views as a group.
  6. 10. To place; to set in a particular spot or position.
Down
  1. 1. Real or perceived movement of atmospheric air usually caused by convection or differences in air pressure.
  2. 2. Something that is smooth, or that goes smoothly and easily.
  3. 3. The colour/color perceived in the absence of light, but also when no light is reflected, but rather absorbed.
  4. 5. Any frozen volatile chemical, such as ammonia or carbon dioxide.
  5. 6. That which is silent; a time of silence.