Here are the possible solutions for many a flannel shirt pattern clue
Answer
Clue
Relevancy
plaid
Clue
Many a flannel shirt pattern
Flannel shirt pattern
Flannel shirt pattern, often
Flannel pattern
Pattern on kilts and flannel shirts
Flannel pattern, often
Common flannel pattern
Flannel shirt feature, often
Definition
a long piece of twilled woollen cloth, usually with a chequered or tartan pattern, worn over the shoulder as the outer article of the traditional Highland dress