Thanks Malone, thanks Granama1,
I looked at the LE... for 20d but didn't really think "scurfy" was powdery, but of course it is.
29a I was stupidly adding an L back to the rice in 29a instead of an I
Apart from the the middle HE.....Y I can't make much of the misprints - I'll put it away for a while and come back to it later - hopefully looking at it with fresh eyes will lead to a breakthrough:-)
Thanks again.