A nice, tough, Thursday. It was slow going, and since we worked top to bottom, the revealer didn't help much, except to explain how all of those things related to "chaos." GENERALDISARRAY (58A: Chaos ... or a hint to the contents of 17-, 28-, 34-, and 43-Across) explains that the word "general" appears, broken up, in each of the theme answers. I don't mind this type of theme, and general is a pretty long word, so it seems worthy.
Except for one square - the "A" in the BARA (49A: Silents sex symbol)/RACEME (43D: Flower cluster on a single stem, as in the honey locust) crossing that we guessed correctly at the very end - we "50A: Bogged down" (INARUT) (Frannie didn't think this exactly parallel) in the SE, where such lovely clues as 61D: Ship's departure (YAW), 47A: Continental pass name (EURAIL), and 51D: Like chestnuts (TIRED) ("old chestnut" is one of Frannie's favorite phrases - and thing to spout) eluded us for quite some time. (How's that for a sentence?)
The long stuff was all strong, and there wasn't much to grouse about. A fine Thursday.