Across 1. Fowl? No, it’s a fish! Lower one’s head quickly, after such a fiasco? Yes. (6,4) 6. From the start you only guffawed about a philosophic system. (4) 10. That is an offence, going back for an American of Japanese heritage. (5) 11. He of the cutty gun gets poorly made princess chained to a rock! (9) 12. Part of a circle has a small number, and it’s a secret. (7) 13 . Democrat, surrounded by fruit, has decorative kerchief. (7) 14. William of fruit? (6) 16. Price consumed something resembling ribs. (7) 20. Jostled something wee, bold and new-fangled. (7) 21. Spiritual leader gets sticky stuff on little Aussie creature. (6) 24. Naïve young woman, but a genuine sort. (7) 26. Increase allows package deliverer to be good condition. (7) 28. Poured through cone, ending in tube? Enjoyable to need about 100. (9) 29. On-target earnings in the House of Lords means rooms for accommodation. (5) 30. Anna baked bread. (4) 31. Horribly lo...