puzzle 1

12345678910
Across
  1. 4. A person or thing exerting such power or action.
  2. 7. A symbol in an alphabet.
  3. 10. Large marsupial.
Down
  1. 1. A musical composition with lyrics for voice or voices, performed by singing
  2. 2. Has a trunk.
  3. 3. Likes to chase mice
  4. 5. The capacity to do work.
  5. 6. The completion of a stage or challenge, or of the whole game.
  6. 8. Flying mammal
  7. 9. Man's best friend