Navigation and symbols

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Across
  1. 2. - This is a large blue glass on the map (6,5)
  2. 4. - Tight beige lines on the map (1)
  3. 6. - Large hole in the ground (1)
  4. 9. - Large blue lines on a map, not canals (1)
  5. 10. - Large old blue building on a map (1)
  6. 12. - A line in degrees (1)
  7. 14. - A sheet with multiple directions (5,4)
Down
  1. 1. - The Distance, of a blue square box (3,9)
  2. 3. - Straight upwards on the map lines (4,5)
  3. 5. - travel through this (1)
  4. 7. - 315 degrees on a compass (5,4)
  5. 8. - A device to help you navigate
  6. 11. - Find a place on a grid (4,6,9)
  7. 13. - Walk along this