17.

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Across
  1. 2. I quietly stepped out to give support (6)
  2. 7. 'Step out with most loved ones'
  3. 8. Troops stepped out in these formations (8)
  4. 9. Be afraid of change in fare
  5. 10. Stepped out in Dorset, maybe
  6. 13. Stepped out when clad in a sleeveless garment
  7. 17. Bit of change in Cuba
  8. 18. MY CLIPS Be afraid of the YouTube videos that I uploaded?
  9. 19. "Don't Be Afraid of the ___" Robert Cray
Down
  1. 1. Stepped out of Astrodome
  2. 3. Bit of change, in Russia
  3. 4. Athlete initially stepped out to receive award in sports stadium
  4. 5. Resulting effect of reduction in fare
  5. 6. It's frightful to be afraid of certain people (8)
  6. 8. Troops stepped out in this formation
  7. 11. A diner's change in menu? Sounds fishy to me (7)
  8. 12. Be afraid of a number of people who are intimidating (8)
  9. 14. Be afraid of
  10. 15. RANK Penniless lush stepped out of line (5,4)
  11. 16. TIGER Nothing to be afraid of, really