When a user clicks the Show on Map option in the Query Widget, the Clear Results Button appears in the lower-right of the Map Widget. This button placement is hard to notice and non-intuitive, as shown by questions like this one. It would be much easier for users to find if this button were placed within the Query Widget itself.
The choice of a trashcan icon is also not very intuitive and could be perceived by the end-user as dangerous. Something more like the enable/disable feature selection icon or the view/hide eye icon from the Calcite icon set would be more intuitive and less threatening.
