While the symbiotic relationship is a very neat thing to watch, there's no guarantee your clown will host an anemone. But the chances increase by choosing the right anemone, usually one it associates with in nature. From what I've read, a bta, although considered to be one of the most forgiving nems, is not a natural host for percs, and chances of your perc hosting it go down because of that. I'm not saying that it's not possible, it has happened before, and I'm actually thinking of trying it in the next year hopefully.
I think there's a sticky at the top of this forum that lists which nems are most likely to host which clowns. That might be a great place to check out.
Also, you're new to RC (and welcome btw) so we don't know a lot about your tank. For example, how old is it? What kind of lighting do you have, what kind of substrate, what size tank, other tank inhabitants - all of these help determine if you're tank is ready and able to house an anemone, and maybe even which kind.
Good luck and happy reefing!