In this video tutorial, the speaker demonstrates how to fix a YouTube video description link that is not clickable. They mention that clickable links in the description are more likely to be clicked on by viewers. The speaker explains that to make your YouTube links clickable, you need to go to YouTube Studio, access the video in question, click on the details tab, and add the 'https' part to the link. By doing this, the link becomes clickable. The speaker also encourages viewers to check out their website for more detailed instructions and resources to help grow their YouTube channel and create a full-time online business.