I have a full grid, and I think I have all but one of the extra words. Most seem to be "associated with a single letter" and I think I can see the set but there is nothing among the letters remotely resembling a sentence. I can see about 11 words which may need highlighting but can't make any sense of them.
Either I've missed something obvious or I've gone horribly wrong. Can anyone give me a gentle nudge so that I can get on with my life please?