Whilst difficult and time consuming, myself and my father found this to be a brilliant and engaging crossword. Hats off to Shackleton for a very classy, multi-faceted compilation. Although time consuming, the result was extremely rewarding.
As a general point about the Answerbank blog, we have found it to be very useful not for the reason of acquiring direct answers to clues or riddles but for getting vague steers and encouragement whenever confronted with a brick wall. And moreover to understand whether a given crossword is 'worth' pursuing. I'd love to do the Listener every week but simply do not have the time. However, when a crossword such as Shackleton's gets high praise on Answerbank, it's invariably worth finding the time to complete.
Thanks to everyone (including Shackleton obviously!!) for their encouragment on this one, well worth the effort.