Our last puzzle of 2017 is by Brendan Emmett Quigley, and it's a meta. "Gear Change" is 4/5 difficulty.
Here is a note: "The meta solution to this puzzle is the cause of the issues in its grid. Send the solution to firstname.lastname@example.org by the end of 2017 for a chance to win a special prize in the new year!"
We're fortunate to have you as solvers and friends, and we send our love and thanks!
Happy new year,
Ben and the AVCX crew
avxwords.com // @avcxword