FWIW - condy nems aren't natural hosts for ANY clown. That's one of the reasons we see them so much cheaper around here than species that are host anemones.
It is possible that your clown will want to host it, but there's also a very good chance that the condy might make a meal of your clown since they see the clowns as a fish and fish = food. Some times clowns are fine, it could be the size of the clown compared to the nem though, who knows.
Just wanted to give you a heads up, I'd hate for you to be surprised one day and come home to find your clowns gone.
My occell.'s host a sebae (H. crispa) anemone and seem to really like it. There's some good nem info in the FAQ section at the top of this forum, it's worth the read.
Good luck!
Good luck!