5d So hoity-toity and what have you. I'm super I must reveal ?M?????U?
14d Might Daniel Defoe have been the first to write the original story ??V??
17d Its down to your id to begin, fanatical one, that makes one just that?G???N?A?
24d What's left of a tree after rooting its roots out ?O?S?
Good point Captain2. I thought it should be "Imperious" but not a simple anagram. I wondered if "So" was part of the solution with parts of "I'm super I" . Could be wrong!!!