Good morning Dizoz - I've just downloaded mine. I'm glad someone has the same reaction - oh dear. I've read through, and nothing makes sense at the moment. A cup of coffee may help.
I assume the five misprinted letters are throughout the grid, not for each clue! But I have no idea how a "passage" is defined. It certainly doesn't seem to be a quotation.
rob and ajt, I've gotten no further than guessing
2d clue ends "storm in king lear'
18d includes "pistol" and "of firing"
20d contains "designated male"
tear my hair (if i had any -): )