Thanks to Artix for a great puzzle - one of the hardest, in my opinion, for some time. It's taken me much of the day to do - kind of making up for last week when I forgot to get an i-paper. I was thrown off the trail for the theme at least twice, once by two near-miss and slightly incomplete words, and again when I found that one of the dn. answers appears also in a row.
I'm still missing a couple of letters from the author's name (an L and an M), but found the thematic title (eventually).