From the first listen this always struck me as a pretty weak b-side...
I think it was originally intended to be on the The More You Ignore Me single, but Morrissey understandably had reservations about releasing it. Hence the weird bit being added to the middle.
It is a very thin and repetitive Alain song with Morrissey attempting to create some sort of tune with the vocal melody. He doesn't really succeed, and it's not helped by the fairly uninspired lyrics.
Interesting that some people have assumed that it was about the falling out with Siouxsie, when this song was written and recorded before Interlude. One of the Youtube comments mentions that a Laura Nero song contains the words Black-Eyed Susan, but obviously it's a pretty common phrase that Morrissey could have picked up anywhere.
I slightly prefer the alternate version that has leaked, but I presume there is a more traditional version still in the vaults somewhere.
In the poll on the other board it ranked 232 from 264 solo songs.