I have to agree with Karren. Cross dressing only implies wearing the clothing normally associated with the opposite sex. The OP introduces motivation which probably bring forth a discussion of creating a subset, fetish dresser. Karren stated "no matter what the purpose." When my granddaughter raided my closet and took (with permission) my flannel shirts because they are comfortable and it was the current fashion she would fall into a strict definition of cross dressing, but, is she a cross dresser? Or when my daughter bought a pair of male shoes because they were more comfortable than female shoes and a lot less expensive was she a cross dresser? My granddaughter also would buy young men's jeans rather than young women's jeans because they fit better. She was one of those young girls/women who had no hips. In these cases these women may be wearing the clothes of the opposite sex, however, were they cross dressers? Enter the difference in definition between cross dressing and cross dresser.
When I raised the issue several years ago that Pumped stated (#4) it ruffled some feathers/plumage.