Well without giving away too much at this stage, would you agree that it's not exactly a 'word'? I have the same 'word' given by the misprinted letters and by the letters outside the grid.
We'll have to agree to disagree on 28. I would say that the last word may be responsible for producing the answer, but it isn't the same thing. The last two words, however, with the misprint corrected.....
Light has dawned on 39, many thanks. I fell straight into the EW trap!