Anyone working this beast from The Crossword Centre?
I have all 5 grids filled, and I see an instruction in grid 5 (4,4,7) in rows 1 and 4 (or columns 1 and 4, for that matter).
I also can see that a few of the 8 extra words (from the grid 1-4 clue sets) have synonyms that appear in grid 5 (e.g. in rows 3 and 7).
However, I also see a lot of gibberish. Are we supposed to alter grid 5 so that answers to all 8 extra words (treating those words as definition-only clues) appear in the final grid 5? Hints, tips, thoughts appreciated.