Very elegant! I enjoyed the trivia and punning definitions.
I wonder if I'm the only one who initially passed up "SCOFF" as an alternate solution for 1a "Deride". It felt like a slightly bumpy fit. You SCOFF either intransitively or at something, while you deride something. I can scoff something (an utterance or my good-byes), but then I'm not deriding what I'm scoffing. "Mock", maybe?
In any case, thanks for de fun ride!