Out of town, a day late, but filled the grid.
Thanks sudokulover, for the tip that the hidden word has 10 letters. Had assumed the word was SENESCHAL (9), but had an extra "I" at 34A.
Now have the correct answer, which fits both definitions.
So, still missing a few letters. Have an "S" at both 34A & 26D, so that's wrong.
BTW, can anyone explain the wordplay at 31D? The word is obvious from crosses, but "advanced" doesn't seem enough.