Jessica

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Across
  1. 5. The other voice in your head when running
  2. 6. Antrim or Medeiros
  3. 7. In maths, the reverse of differentiation.
Down
  1. 1. Nike headquarters?
  2. 2. Got into a pickle in a balloon in ‘87
  3. 3. “The birds of Rathlin Island” author
  4. 4. Diminutive nautical rapper