Thanks to you, Silly boy, I've just this minute finished it - a few crossings-out, so I must rewrite, but 3d is EOTHEN, and Chambers telle me it means eastern. The one you must shade is 35 ac. The various anagrams are - leapt, lepta, palet, pelta, petal, pleat and tepal. I haven't looked up the obscure ones! Good luck!