The Portrait of a Lady

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Across
  1. 2. Sure and definite (7 letters).
  2. 6. A board game of buying, selling, and dominating the market (8 letters).
  3. 7. Just a bit or a small amount (8 letters).
  4. 8. A perfect score in cricket or a Roman numeral followed by two zeros (7 letters).
Down
  1. 1. Fine lines on the skin that come with age (8 letters).
  2. 3. Made of clay or related to soil (7 letters).
  3. 4. Walked with difficulty, as if impeded (7 letters).
  4. 5. Held tightly together, like hands or a lock (7 letters).