Here are the possible solutions for diagonal line clue
Answer
Clue
Relevancy
bias
Clue
Diagonal line
Definition
to cause to incline to one side
slash
Clue
Diagonal line
spare
Clue
Diagonal line, to a bowler
Diagonal line, on some score sheets
Diagonal line, on a bowling score sheet
Diagonal line on a bowling score sheet
abe
Clue
Nickname of the man (born 2/12/1809) who gave the address at 18A, issued the 28A/45A, was the first elected president of the 60A Party, and whose name can be found in this puzzle's main diagonal
area
Clue
In a rhombus, half the product of its diagonal lengths