She could possibly be Lita Ford, as she likely was present for that photo shoot. At the time I believe she was a member of the Runaways, and that publicity event included them.
Candyman is one of my favorites. One of my friends told me that during the sixties there was a guy in San Francisco nicknamed Candyman, and I guess this song is about him, but I forget his real name. Apparently he had a predecessor from the 1800s.