Hidden figures

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Across
  1. 3. having developed certain abilities or inclinations at an earlier age than is usual or expected.
  2. 5. enlist (someone) compulsorily, typically into the armed services.
  3. 7. (cloth, clothing, or soft furnishings) becoming thin and tattered with age.
  4. 8. make (a liquid) turbid or muddy by disturbing the sediment.
Down
  1. 1. written or spoken communication or debate.
  2. 2. producing a great deal of profit.
  3. 4. extreme self-confidence or audacity.
  4. 6. a women's student organization formed chiefly for social purposes and having a name consisting of Greek letters.