I'm an American and am going to be visiting the UK next year and hope to stay for the full six months on a tourist visa. However, I am also a writer and plan on working my book and handling the business end of my writing career at times while I'm visiting. I'm more than financially comfortable but derive what income I'm currently earning either through publisher royalties or through Amazon. I've long had my own corporation based in the US through which I run my finances and pay taxes.
I've gone over the Gov.uk site and read the different requirements and rules, but am still not clear on whether I will need a work visa or not. It seems highly illogical that the UK should care if I work on a novel while I'm visiting, but the rules are maddeningly vague. Any advice would be most appreciated.