Clarkii clowns (and skunks) are kind of the "party girls" of the clown world, they will go with anything and anyone. But that said, usually once the Condy is healthy and fully acclimated, they usually end up stinging/eatting the clown.
That aside, your going to have trouble between the two different clowns, as clarkii family are kinda jerks when they mature, and skunks are faily calm.