I have done a search of the forums but many of the posts are a couple of years old, and I want to be 100% sure that I'm falling on the RIGHT side of the law!
I am going to put something ON THE FIRST/LANDING PAGE along the lines of "don't press the clicky button if you aren't over 18 cos this site is sexy". Is this all I need to cover myself as an independent?
Then within the site itself, I obviously need to talk about what I will/won't do. Can I be graphic, or do I need to use codes and euphemisms? Do I need to state that my site does NOT promote or advertise prostitution? Can I openly 'talk' about what services the money covers? Do I have to go down the "the money is for time and companionship and what happens between 2 consenting adults is their own business" route?
I just don't want to get this wrong and find my web site deleted or worse!
Thanks all 
Definitely do a landing page. Even if not for legal reasons: it's only fair to warn people before showing them over-18 content! But legally, I'm pretty sure it's highly recommended that you do, too, as all adult content on the Internet seems to follow this guideline. You don't want to go around corrupting a minor (or a busybody parent), after all.
Prostitution is, obviously, legal in this country (unless you're working on the same premises as one or more other escorts or running an agency) but I believe different web hosts take different stances on this. You're not personally breaking the law by admitting on the Internet that you (a UK citizen living in the UK and paying tax etc) are having sex for money but your hosting company might take some random offence. You've probably already checked through all their small print to see if they allow adult content to be hosted on their servers and so you can probably just go by that. Perhaps add in your landing page warning that you're not intending to promote prostitution, just to cover various silly bases of possible complaint, but that's probably not necessary.
I chose the words/euphemisms/graphic content on my site pretty much willy nilly.

Just whatever felt right at the time! I suppose I feel a bit safe working in a country where I don't have to worry about being arrested by an undercover perv-cop (*eyes America warily*) so I'm happy to stuff my website and blog with details about how covered vaginal penetration will probably occur at some point after ca$h-money is put in my paws. So I would say it's entirely up to you how euphemistic you want to be - most of the uber-klassy Companion-type escorts seem to be extremely vague on their sites and perhaps it adds to their air of mystery and seduction! But I prefer to be straight-forward as there's absolutely nothing subtle about me and I would hate to give anyone the wrong impression.
Anyway, all that said, Anika Mae, xw5 and Amy, among others, know an awful lot about legalities where escorting is concerned so will probably be along shortly to correct all my babblings here.
