The old lighthouse

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Across
  1. 2. Shaking slightly due to fear or tiredness
  2. 4. The firm determination to do something
  3. 7. Standing firm and not giving up despite difficulties
Down
  1. 1. A strong ray of light sent out regularly
  2. 3. A state of extreme tiredness
  3. 5. Sudden and intense storms
  4. 6. The act of failing to give proper attention
  5. 8. Misleading or tricky in nature