Here are the possible solutions for affixed one's john hancock to clue
Answer
Clue
Relevancy
inked
Clue
Affixed one's John Hancock to
Put one's John Hancock on
Definition
INK, to colour with ink
sgd
Clue
Affixed a J. Hancock
magnacarta
Clue
Where King John put his John Hancock
colony
Clue
Each circled pair is an abbreviation for one; all 13 are arranged in the roughly north-to-south order in which their representatives (except for John Hancock) signed the Declaration of Independence