Previous cryptic solution

Across: 1. Chart 4. Scratch 8. Mechanisation 10. Photo

11. Iran 12. Peru 16. Inept 17. Bareback rider 19. Extorts

20. Dined

Down: 1. Companionable 2. Arc 3. Tramps 4. Suitor

5. Reason 6. Thickness 7. Hand-laundered 9. Head-first

13. Timber 14. Fences 15. Stared 18. Don