Is this a joke?

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Across
  1. 3. acknowledgement of responsibility
  2. 4. to keep going
  3. 5. skill or talent
  4. 7. to speak and act for a designated group
  5. 10. limited, barely, few
  6. 13. title clue
  7. 15. the process of building
  8. 17. verbal statement claiming harm
  9. 18. trade, exchange of goods
  10. 19. earn
Down
  1. 1. real
  2. 2. journey,risk
  3. 6. to make better
  4. 8. stand out, job well done
  5. 9. someone you met
  6. 11. nailer of wood
  7. 12. give up something for the greater good
  8. 14. underwater ship
  9. 16. moment, an occurrence, an example
  10. 20. sight