Alternate clues: ACROSS 1. Horizontal movement (6) 4. Cast by voters (6) 9. An atomic one was designed by Oppenheimer (4) 10. Used to lighten the mood when meeting new people (3, 7) 11. Disney is a major one (6) 12. Barely consider (8) 13. One between childhood and adulthood (10) 15. Also... (3) 16. Feeling of elation (3) 17. To put in danger (10) 20. Certain but lacking firm proof (8) 21. Not present at school (6) 23. Wife of Hades (10) 24. Genuine (4) 25. Kept in a portfolio (6) 26. Minor greek deity (6) DOWN 1. Terminated pregancy (7) 2. A dog with foaming mouth (5) 3. Those fellas at sea (7) 5. Lets out a lot of gas (3, 4) 6. Handed out promos for election candidate (9) 7. A shaky style of music (7) 8. Handheld gadget (6, 7) 14. Friends of George III (9) 16. Actor, Jamil (7) 17. Casino payout (7) 18. Type of school created by Tony Blair (7) 19. Open-toe shoe, great for paddling (7) 22. A very British tantrum (5)