Here are the possible solutions for how most reading is done and this puzzle's title clue
Answer
Clue
Relevancy
fromlefttoright
Clue
How most reading is done, and this puzzle's title
valueofpi
Clue
Subject of an annual March 14 celebration and of this puzzle, celebrated in both a literal and a numerical way in the first square of the starred answers, reading left to right
saynomore
Clue
"Done and done!"
sobeit
Clue
"Done and done"
meta
Clue
Puzzle-within-a-puzzle puzzle
Definition
(US) concerned with cultural conventions; (of an artistic work) self-referential
nook
Clue
Reading place ... or reading device
Definition
a corner in a room, also NEUK
steinem
Clue
Who said "A woman reading Playboy feels a little like a Jew reading a Nazi manual"