Jumbo crossword No 17

One hell of a workout across three sessions, but an enjoyable one nonetheless! I appreciate the breadth of your reference pool - both in the answers (e.g. 1a v. 12a/24d) and the wordplay (e.g. 23d's hero v. 29d's ash), not to mention the clues themselves ("down bad"! "soft launches"!). Top five are 34a ("as all disappeared" indeed), 44a (lovely def), 59a (you clever clogs), 23d (fun fill, fun clue) & 58d (yeah okay it took a moment). Thanks for the fun, and I hope someone else solves this!