Here are the possible solutions for affix one's john hancock clue
Answer
Clue
Relevancy
sign
Clue
Affix one's John 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