You are correct, I actually got to call BXR, our local radio station, the day they were in Columbia, MO, and ask Rhett to clarify the lyrics, and he confirms it is a "long black cloud of love."
*He had one glass eyeball, the guy that got him, had to use brass knuckles. It's a great song, I really like Here's to the Halcyon too, I think it's my favorite one on the album.