Here are the possible solutions for fabrics with diagonal ridges clue
Answer
Clue
Relevancy
twills
Clue
Fabrics with diagonal ridges
serge
Clue
Fabric with diagonal ridges
serges
Clue
Fabrics with diagonal lines
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