So, what if the two clues Pete gave us are taken in order and the second actually relates to the first:
Clue 1, November 2017 - The book's main character, Nelson Ware, has said, "Every word is important in my writing." Clue 2, December 2017 – The Fifth.
Then the fifth word of the riddle is "realized" which as pointed out in the posts above seems to stick out anyway. Maybe this is just a confirmer that we need to look at this word closely as it is realized in the riddle.