UCAS Extra allows you to add an extra sixth choice to your UCAS application. This has to be done before July 4. Your sixth choice is subject to the same terms as your other five. This means offers can be unconditional, conditional or may not be made to you. You are free to withdraw your sixth choice, or decline any offers made under it.
Clearing is a different opportunity to find the right university or course for you. If you didn't secure an offer before June 30, then clearing is the next step in getting a place at university. You can find out more on our clearing page.