Just finished. Some great clues requiring perseverance, but some obscure stuff too. Still don't get 20d Swiss banker despite hints. COD has to be 18, but 27 clever too.
Should have been home on Friday ,was looking forward to my paper on Saturday but spent three days in Dubai instead because of flight delays due to floods ! Have nearly finished but It is good to be home!
COD 18 a of course.
A late contribution: it takes us to this point of the week to solve the prize. This one really was a cut above. Has anyone ever raised the possibility of the chat group recognising the best crosswords of the year? This would be one of ours.