I'm saying that Fear is a subcategory of mind-effecting. Mind-effecting encompasses many things, including fear. So anything that gives a bonus to mind-effecting will also give a bonus to fear. It -should- also give a bonus to charm, confused, dazed, and everything else beneath mind-effecting.
There are three main types of saves. Reflex, Fort, and Will. Mind-effecting is a category of Will save, and fear is a subcategory of mind-effecting. As Spiffy said, clarity will block the fear effect because it makes you immune to mind-effecting conditions. It will not remove the fear effect, but will remove some specific other effects as stated in the clarity spell.