I think it's written about a parent dieing; Morrissey channeling the grief into these words and a beautiful vocal. The angle that it's about the fan/star relationship is there, but only in the usual sly Moz way. Same as he did on 'All You Need Is Me' which is, I think, about a disgruntled lover, but could also be referring to the disgruntlement of fans.
I could be wrong, cos to be honest I don't really like the idea of him writing songs about the fan/star thing ('Paint A Vulgar Picture' excluded). It seems unworthy of him. It's all subjective of course, but I would rather believe it to be about something more substantial. It seems to work on this song. I choked up.
That's an interesting idea, I was unable to drag myself away from the fan/idol element.