Clues are of 3 types:
(i) a letter needs removing from the clue
(ii) a letter needs adding to the clue
(iii) wordplay gives the answer with a superfluous letter
All answers are 8 letters
1. Geographical region sown in fine areas tilled (2 words) must be an anagram of some of it...?
3. Torpor of college official with cape retaining degree ???DNESS deadness? coldness? I can see D for the degree and ness for the cape ...