No. Your US clients will need to have a PayPal account to send the payment. Payments received to your Payoneer account are automatically withdrawn to your local bank account within 24 hours, so there’s no need for you to have a PayPal account, nor can we facilitate the opening of one.
There is a standard fee for the US: 3.99% + $0.49 fixed fee, or for the UK: 3.99% + £0.39. It is payable by either the requester or the sender.