Based on the clue 'arthurs death shatters peace in the 3 realms a ne...', what is the answer?

What is associated with: arthur wynne created the first modern one of these puzzles published in the new york world in… What is associated with: arthur wynne created this the first puzzle appeared dec 21 1913 with the name word cross? What is referred to by 'arthurian sword 9'? Based on the clue 'arthurian talespinner of monmouth 8', what is the answer? What is referred to by 'arthurs fools'? What is referred to by 'arthurs purest knight'? Based on the clue 'arthurs round table had a seat reserved for this k...', what is the answer? What is referred to by 'arthurs school terms'?