Many thanks to Shaneystar2 and Tichfield for showing me the way...I have ALL the unclued lights now, and in hindsight it was really starightforward! But I must have done something wrong elsewhere, for te following are still a pain in the neck! HELP again!
I have completed it! Thank you very much, Kayakamina, for your invaluable hints and tips! This was a good learning experience...I am getting the hang of this type of crossword now...Some of the answers were right there under my nose, but I was looking too far! Thanks again, all!