Possible Clues:

• Not beyond belief
• Picture about a lawyer - is that within the bounds of possibility?
• Big AA Milne novel not too far-fetched
• Not beyond thinking one masculine, securing private arrest
• One fellow imbibing drink with sailor, as may be fancied
• Possible to believe in big animal that roams the top of Everest
• Possible uprising in island I'm not in favour of leading
• Not too far-fetched
• It's possible compiler's fit taking a drink