Here are the possible solutions for like this puzzle's grid clue
Answer
Clue
Relevancy
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
hornrimmed
Clue
Like some eyeglasses ... or like this puzzle's grid
ambidextrous
Clue
Using both sides with equal frequency (like the letters in this puzzle's answer grid?)
Definition
able to use either hand with equal dexterity, also AMBIDEXTEROUS
asymmetric
Clue
Like this puzzle's grid
Definition
not symmetric, also ASYMMETRICAL
embedded
Clue
Like aleph in the central black squares of this puzzle's grid
Definition
EMBED, to plant firmly, also IMBED
opticalillusion
Clue
Thing that may appear to be symmetrical but isn't ... like this puzzle's grid
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
