/k/ and /g/

12345678910111213
Across
  1. 3. Assurance of something happening
  2. 5. Elected official at the head of a state
  3. 9. Protective spirit
  4. 10. Orange root vegetable
  5. 12. Small freshwater fish commonly kept as pets
  6. 13. Ice cream-shaped dessert
Down
  1. 1. System of governance
  2. 2. Large container
  3. 4. Precious metal associated with wealth
  4. 6. Large primate known for its intelligence and strength
  5. 7. Small piece of metal used as money
  6. 8. Seize or capture
  7. 9. Measure of liquid volume
  8. 10. Opposite of warm
  9. 11. Grain is often used for animal feed