You haven't mentioned the 'misprints in definitions' - that will help those without a copy!
8D. Put together A, in clue, a four-letter farm vehicle, and a short word meaning 'very good'. Lifting = reverse, it's a Down clue. The misprint is at the end of the clue.
35 A. The misprint is in the first word. The answer is an anagram of 'trials' and another letter, from 'are'.