A theme of three onomatopoeic foods: TOOTSIEPOP, CAPNCRUNCH, and GINGERSNAP, with SOUNDBITES as a revealer. Works pretty well for me.
I enjoyed the wistful clue for ROADMAP (52A: Plan going forward, as for peace), especially after running into NAPALM (30D: Incendiary weapon used in the Vietnam War). And a CAROUSEL (39D: Amusement park ride that goes around and around) is a calming thing to think about.
GASBAG (23D: Long-winded sort) and ONTHEDL (4D: Hush-hush, slangily) were fun. That last one could also be "On the QT," right? Well, anyway, I left the last two spaces empty until I verified them with crosses.
Overall it was a perfectly cromulent Monday puzzle.