I NEED A HERO

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Across
  1. 1. Artificial fly, commonly categorised as a wet fly or streamer
  2. 4. Subtracted from your net sales to get a gross profit (acronym)
  3. 9. Bottlenose Dolphin
  4. 11. Feline nasal mucous, often adorning the walls of 26 Kinkora Road
  5. 12. The only appropriate response when the vacuum is brought out
  6. 13. Greek figure of vanity; Spring flowering bulb genus
  7. 14. In golf, a shot where a steep slope is used to manipulate the direction or speed of the ball
  8. 17. Most infuriating cruciverbalist
  9. 19. Devourer of 5 Down
Down
  1. 2. Scout's Kryptonite
  2. 3. The necessary crunch with which to finish a meal
  3. 5. Salt-water bivalve mollusc
  4. 6. First name of Mary Ward's father; cartoon dog
  5. 7. Of Scout - probably need a squeeze
  6. 8. The franchise that Moira Rose made her acting comeback in
  7. 10. Source of Tom's anecdotes
  8. 12. An ancient Greek warrior of high renown; a father who gets a crossword clue
  9. 15. Tomboy, coquette
  10. 16. Nature's Candy
  11. 18. Of coding: a set of rules that define particular layouts of letters and symbols