23a Star whose luminosity changes regularly or irregularly (8) I have ?a?i?b?n One Across gives me ratisbon but I don't seem to be able to verify this Thanks for any help
Sorry folks. I have just done what I should have done earlier and looked back through previous answers and found this one. For light snacks I had nuts instead of eats and so was led astray with an n in place of an e to end the word.
So, now no help required and it is all done