Description of <accessor>'s child element <param> says:
"The type attribute of the <param> element, when it is a child of the <accessor> element, is restricted to the set of array types: int, float, Name, bool, IDREF, and SIDREF. See main entry."
It's missing a sentence saying what it is, so the current phrasing makes it sound as if <param> is the type attribute. Also subject confusion "the type attribute...when it is a child of..." but it's not the attribute that's the child, it's <param>.
1. Insert "Defines the output of the <accessor> element."
2. Change sentence to "When <param> is a child of <accessor>, its type attribute is..."