That “start clock” thing confused me as well when I ran this as a one-shot in between sessions of Mythender. I’m still not completely clear what it means.

I did not read the rules as mandating that a failure during Legwork meant a tick on the Legwork clock (or Action for that matter). I took that as an important option. See top of page 180 about clocks being an “invitation”. Did I miss that rule? When I ran this, I probably advanced the clock every other failure or so on average, mostly when there was not another immediate soft/hard move that seemed more interesting, or when a tick of the clock seemed an obvious corollary to what was happening.