This grid has mirror symmetry in both directions: left-right and top-bottom. What would you call that? I suppose it's not technically dual symmetry:  I think that means 90-degree-rotational symmetry in a square grid, but this grid here is rectangular, not square. Let me know if there's already a common term for this kind of double-mirror symmetry, or if you have an idea yourself! Regarding the stuff in  the grid: some fun long answers, some silly clues, and some educational clues (especially 20- and 21-Down, a person I want you to know about). But, overall, I tried not to make anything too challenging, so I hope this plays as a smooth medium  for you.  Enjoy the solve, and share if you do! Constructive feedback in the comments is always welcome. Download links:   [ puz ]   [ pdf ]   [ solution ]        Direct link: [ play online ]