Under the Ice

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Across
  1. 2. / sharp corners
  2. 3. / unbelievable
  3. 6. / convincing
  4. 7. / timetable
  5. 8. / not successful
  6. 11. / jetty
Down
  1. 1. keep trying
  2. 4. / amazed
  3. 5. / move forward smoothly
  4. 9. / miss
  5. 10. / commence