I started this as a break from Magpie and nearly gave up. So glad I persevered - fine clueing, remarkable grid construction and a memorable PDM. Many, many thanks Shark....
Some lovely clues have brought me to the point where I just have to find the third item to illustrate, and I feel a need to rest. Thanks (in advance) Pointer. You have enlightened me and revived...
I have a nice full grid, but not a clue what's going on. I don't want to know what the solution is, just that someone out there has seen a regular pattern (or whatever) that makes sense of the thing....