One more to solve - it took umpteen internet searches to get this far!
19 across "Briefly, the applied science associated with computing" (8)
I've got: - N - O - A - H
What a difficult puzzle - it took umpteen internet searches to get this far!
Sample questions ...
"Glen Coe's Three Sisters are ridges of this mountain" (6,3,4)
"... architecture is a design scheme for a stored-program computer" (3,7)
"The hymn "Veni Creator ..." provides the words for the first movement of Mahler's eighth symphony" (8)