Here are the possible solutions for complete as a crossword grid clue
Answer
Clue
Relevancy
fill
Clue
Complete, as a crossword grid
Definition
to make full
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
color
Clue
My favorite is probably turquoise (but don't tell the black and white of a crossword grid that!)
Definition
(US) to paint, also COLOUR
diagram
Clue
Crossword grid
Definition
to illustrate by drawing a plan
dupe
Clue
Accidental repeat of an entry in a crossword grid
Definition
to deceive
edge
Clue
Most likely place you'd find REASSESSES in a themeless crossword grid
Definition
to furnish with a border
end
Clue
Fitting last word in a crossword grid
Definition
to terminate
fun
Clue
First word across in the first-ever crossword (1913) and the first of a dozen appearances of the word in this puzzle's grid, written word search-style (left, right, down, and diagonally) ... Can you f