crossword teach me to spell

123456789
Across
  1. 1. A journal
  2. 5. You record it
  3. 6. A soldier
  4. 8. A theory
  5. 9. An uproar
Down
  1. 1. Only certain foods
  2. 2. Remains of a structure
  3. 3. An instrument that has keys
  4. 4. The author of a poem
  5. 7. A communication device