Across 1. His 2. On Cloud Nine 8. Lauren Bacall 9. Shout out 10. Wonga 11. Tie up 13. Boris Karloff 16. Piranha 20. Allay 21. Graph 23. Nauru 24. Flagpole 25. Bikini 26. Balloon ride 27. Tat
Down 1. Hill walking 2. Squander 3. Opera buffa 4. Lisburn 5. Doubt 6. Ironed 7. Eft 12. Parachutist 14. Shiny 17. Naturist 18. Glue ear 22. Hippo 23. Noise 24. Fib