I’m sorry that the “Clear” button isn’t obvious. We used to have all of those buttons have longer labels and it was titled “Clear responses” however we had to shorten the names for most of them for space as we added more controls recently and had some feedback that the buttons needed to be larger.

I’ll get a request out to our design to see if we can get some tooltips in the short-term. I know longer-term our plan is to move more toward a dropdown menu of options where we’d have more descriptive labels.

If you do want any more information about the Clear responses option you can read about it here: https://www.polleverywhere.com/guides/presenter/getting-started#clearing-responses