Hope just the two now
2d 9's weir sisters as practitioners of spin N?r?s (Nores or Neros) anagram of 8 across Norse
15d Excited state over side issue at Glamis Castle? U?b?e (5)
Steeve seems right but if you can think of a word where "E"is not the last letter please let us know. Upbye seems to parse ok but can't find it in any of my dictionaries nor in connection with Glamis Castle.