CH sounds like K

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Across
  1. 3. MONA Person with a title like king, queen etc.
  2. 5. CHEM Authorised dispenser of medicinal drugs
  3. 8. ORCH any of various plants bearing flowers
  4. 9. ZUCC small green vegetable
  5. 13. STOM internal organ in which digestion occurs
  6. 14. CHAM small lizard able to change colour
  7. 17. PYRO art of making fireworks
  8. 18. SACC highly sweet substitute for sugar
  9. 19. SCHE a plan, outline or diagram
  10. 20. PATR male head of a family
Down
  1. 1. SCHO place for education
  2. 2. TRIP picture or carving on three panels
  3. 4. TECH someone who fears new technology
  4. 5. CHAO Utter confusion
  5. 6. CHOL Infectious disease of the small intestine
  6. 7. TECH someone who is enthusiastic about new technology
  7. 10. BRON inflammation of the membrane of the windpipe
  8. 11. ORCH large group of instruments
  9. 12. TOOT pain in the teeth
  10. 15. MECH person skilled in repairing machines
  11. 16. ARAC animals include spiders and scorpions