Well there is the clonename variable as well. It is name.cloneindex, which is the unique way to get clones. You can use this with Actor *s to better deal with clones.
Is xant an actor variable? Not quite sure what you are trying to do, I think my first guess was wrong. Do you want to store only one xant, or one for each clone?
Just make the variable an actor variable. You have to create it with gameEditor's Variable button found in script, but when you create it just look for the global, and switch it to actor.