Well, this is a mess. 5D - novel by einstein found in glassworks we hear (2,3,4) 9 letters when in fact it is ten letters. I have O?T?E???C? - help ? Any help with 14A, 28A and 15D would be appreciated
Also, in 8D Arrabin is wrong - it should be Arabin.
3D, Mitchell, is a lousy clue - the obvious answer is Blenheim a WW2 bomber which was involved with the Spanish Civil War. I am becoming increasingly disenchanted with this Crossword and its numerous mistakes - maybe i won't do it any more.