I
think that the unclued across solutions must be read from right to left and the unclued down solutions from bottom to top. If so, it is clear what must be entered at 27a, 30a, 39a and 34d, but the other unclued solutions are less clear. I think that all my checked letters in 14d (or rather 14 up) are correct, but I can nevertheless find no word(s) which will read from bottom to top at 14d.