Anyone out there ... ?
Am plodding on with this on the basis that the 'of a kind' are Guardian (or other?) setters. Eg 40ac being the late, great, monkey puzzler and 37d this crossword's setter - and have got a few more.
20d is frustrating me. Must be Arachne/Rosa Klebb - so is second word 'spider', and if so, what is the first ... ?
Have checked the notify by email button and look forward to hearing from others.
Thanks and happy Bank Hol to all.