Thom, your O is wrong. And the first letter of the wordplay is extra, and is the letter over in the anagram fodder in the “Iago’s” clue. Your O seems to come from a past tense in the “Disown” clue. It should be present tense.
Me again! What’s with this rearranging. I’ve found the row, the last seven letters of which give a lovely thematic looking word but the first five are nonsense. Unless I’ve gone catastrophically wrong somewhere it really looks like this is the only thing it can be?
Great puzzle! “Tough but fair” was a good description. I see a few people struggled with getting the first few clues. Actually it was easier to start at the bottom! And essential to put in the bars - just ignore them in the end game.