SCHOOL

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Across
  1. 3. a large floating mass of ice, detached from a glacier and carried out to sea.
  2. 5. a boat having sails as its principal means of propulsion.
  3. 7. Australian tree, having whorled leaves and elongated clusters of pink flowers.
  4. 9. a brother of one's father or mother.
Down
  1. 1. essential, indispensable, or requisite
  2. 2. a soft-bodied, legless larva of certain flies.
  3. 4. a period of approximately the same length in other calendars
  4. 6. a pear-shaped, muscular sac attached to the undersurface of the right lobe of the liver, in which bile is stored and concentrated.
  5. 8. in, at, or to a higher place.