I've got a couple of questions, with, I'm sorry, a long preamble.
I have, in a way, completed the puzzle...or at least it looks like a completed puzzle.
I started by doing the usual thing I do with these sorts of instructions, i.e. looking for the four Across clues which don't involve extra letters.
I found them quickly and filled them.
Immediately after that, a thing happened which might sometimes happen to some of you as well. For no reason at all, and despite the instructions not hinting that there is a theme, out of the blue I thought, "This puzzle is about (the theme)". A propos of absolutely nothing.
After that, it didn't take me very long to fill in what I've filled in.
What I've ended up with is:
a fully completed grid in which--
-All of the answers match their clue definitions
-Two of the within-the-grid answers refer to the theme
-Four thematic answers result from the grid, rather than the clues
and
-a list of missing letters, which were needed to create the thematic-related fill.
My questions are:
What squares am I supposed to leave empty and why? The omitted letters helped to create theme-related answers, and I could place them where they needed to be, creating real-word answers--both thematic and non-thematic.
What are the parsings for the two within-the-grid thematic words? These are the words that occurred to me out of the blue, seem to be correct and now I can't think backwards about them...since they did drop, but without a penny.
I could submit what I've got, which looks like a normal, completely filled grid.
But the instructions say I should have empty squares and non-words--and i have neither.
Whatever it is I've done, I did have fun doing it...