Manic Mary, it is a bit tricky keeping track of the different classes of clues. I found it helpful to write down in clue order the clue numbers for each quadrant, where the answers are wholly within that quadrant. Six of these clues each have a single letter misprint. Without wanting to give too much away, these spell out a ROLE that the subject had in life e.g type of job, hobby, skill. One ROLE per quadrant. The remaining two clues have answers that give hints about the role.
I also wrote down, in clue order, the clue numbers of the the remaining clues; the ones where the answers straddle two quadrants. In these the wordplay gives the answer plus a letter that is not entered. These spell out a definition of the word that is "...the pseudonym by which EV solvers best know the subject." Hth.