@Farrnorth: Yes, I have 1d. Its singular form is in Chambers. Your 1a is right, so if you are having difficulties with 1d, it may be because one of your other letters is wrong. Check your answers for 11a, 16a, 23a and 29a.
Can you offer any help with 3d and/or the significance of the title and/or the common factor which links the anagrams of the 8 unclued lights? There is one obvious link, but I don't see how it relates to the title, so I have probably failed to spot something.