It can take up to 21 days for the funds to clear. After much searching I found this on the Paypal website.
When will PayPal release the payment hold for an eBay item?
Your funds will be released after 21 days. We may release funds earlier when one of the following occurs:
The buyer leaves you positive feedback on eBay
3 days pass after we confirm the item was delivered*
If you receive a dispute, claim, chargeback, or reversal on the transaction subject to the eBay item hold, we may hold the payment until the problem is resolved, even if the claim, chargeback, or reversal occurs after the hold is released.