Word Count: 72
Average Length: 5.36
Difficulty: 4 out of 5

As the mat says, Welcome! This one’s a moderately challenging themeless, so put your thinking caps on and remember, it’s nice to share …
34A: I apologize for failing to find a less gloomy quote for this answer.
3D: This is the heart of Miami’s Cuban community
9D: The furor triggered by the Encyclopedie, which was the first largely secular encyclopedia, makes for an entertaining story. An Enlightenment tour-de-force, the Encyclopedie was banned by the Catholic Church and blamed/credited for the French Revolution. https://en.wikipedia.org/wiki/Encyclop%C3%A9die