Here are the possible solutions for unlike this puzzle's grid clue
Answer
Clue
Relevancy
asymmetric
Clue
Unlike this puzzle's grid
Definition
not symmetric, also ASYMMETRICAL
four
Clue
Number of times this puzzle's theme word appears diagonally in the grid (to complete the puzzle, shade those words plus the Down answers that begin where they meet)
Definition
the cardinal number next above three
acr
Clue
Unlike this puzzle ans.
clue
Clue
A crossword editor has to be very careful when changing one--unlike this puzzle's editor, who was careless four times herein
Definition
to obtain guiding information
diag
Clue
Unlike any ans. in this puzzle
meta
Clue
Puzzle-within-a-puzzle puzzle
Definition
(US) concerned with cultural conventions; (of an artistic work) self-referential
abe
Clue
Puzzle theme which appears nine more times in the grid
adozenroses
Clue
What you can find in the grid after completing this puzzle, looking up, down, left, right and diagonally, word search-style