Across 1. Horned and bearded animal 3. Cook by boiling slowly 6. Mathematics 9. An assistant 11. Not the beginning 12. Fur loving pest 13. Too 14. Tear 15. Do this to a fly 17. Hammer or wrench 20. Unwanted lawn growth 21. Not fast Down 1. Precious stone 2. Small insect 4. Prefix meaning 3 5. Grief, misery 7. Permit 8. It pumps blood 9. Alter to be suitable 10. 70’s style of music 15. Stitch with needle and thread 16. Number of years old 18. Hooting bird 19. Not high | 