From the Flagstones Lyrics

Lyric discussion by Baal29 

Cover art for From the Flagstones lyrics by Cocteau Twins

As is in Many Earlier Cocteau Twins Lyrics, the phrasing is Broken, err extended, on accent; first couple of times I heard Flagstones, I thought the Horses Gallup was metaphor for what i thought, ":Nuclear Disaster, was being refrained." now I think it's about a ghost at a military base?