If someone was defeated but the soul is still around then can they be alive and return to there living form.

no cause they are already dead,unless there is a chance,they could could problay come back

Are you talking about Arachne?
I'm not sure...but, I don't think so.

no

I dont know?

Well I heard that in the manga Medusa after she's thrown out of the little girls body she posses her sister arachne