Agent Plissken

Ok. SS paypal once again… I need your advice.
I sold an item on fleabay ($300+) and the buyer paid with an unconfirmed address. (My auction stated confirmed shipping addresses only for paypal.)
I don’t want to ship the item, because if the money they paid with turns out to be stolen, and I ship to an unconfirmed address, I will lose the money AND the item.
So my question is this. If I accept the payment and ship the item, and withdrawal the money to a different account, if their payment turns out to be bad (which I really have no reason to suspect) will paypal take this money out of my linked account?
This really is BS because by money showing up in my paypal account, it should be “mine” now.
If it is still not clear if the payment was legitimate or something, it should be in a ”pending” balance or something.
That way a seller could just wait until the funds were guaranteed to be secure, then ship the item.
But the way that it is set up, the money can show up in my account, I ship the item, then paypal takes the money back out so that the seller gets frauded instead of paypal getting frauded!
Anyway, what should I do!?

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