Home grown sound effect zone

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Across
  1. 3. an imaginary creature from Dr who.
  2. 4. a short sleep
  3. 7. proceed quickly.
Down
  1. 1. a repeated loud sound
  2. 2. a small black bird.
  3. 4. who, a long and famous TV show.
  4. 5. a big bang.
  5. 6. a loud metallic sound