I don't find where you have defined "Creationist" here. In my mind, evolution is about how we got from point A to point B. Creation is about where A came from. You might add, Catastrophism is about how some of the steps from A to B happen suddenly, like mutations.
So isn't creation beyond the realm of science, and science can deal with things after A. I think this is roughly Stephen Hawkings point of view, and it makes sense to me. Regarding creation, it seems logical to believe that there was never nothing. So you are left with (1) The universe just always existed, or (2) a higher being always exsisted and created the universe at some point. Your faith is what you choose, 1 or 2.