"Clean Up By" arranges files by the selected attribute, compared to "Sort By" which keeps files arranged by the selected attribute. If I were Apple I would have

"Clean Up By" arranges files by the selected attribute, compared to "Sort By" which keeps files arranged by the selected attribute. If I were Apple I would have either gone with `Arrange/Sort By` and `Keep Arranged/Sorted By` or a single menu `Sort By` with a toggle-able option to keep it sorted by the selected item. I suspect the latter at least might not be done because then the menu items for the attributes you sort by would remain selected or reset automatically depending on the state of the `Keep Sorted` toggle, which would be weirdly inconsistent. But then again the `Clean up By` menu enables and disabled depending on the state of the `Sort By` menu, which is arguably even more inconsistent and confusing.