Here are the possible solutions for connection of this puzzle clue
Answer
Clue
Relevancy
meta
Clue
Puzzle-within-a-puzzle puzzle
Definition
(US) concerned with cultural conventions; (of an artistic work) self-referential
and
Clue
Connection of this puzzle
Definition
a conjunction indicating addition
ergo
Clue
Logical connection hidden in eight puzzle answers
Definition
(short for) ergometer
missinglink
Clue
Theoretical connection ... and a hint to interpreting several Down answers in this puzzle
usb
Clue
PC connection found in this puzzle's eight longest answers
asif
Clue
Valley girl's "yeah, right" [IMPORTANT: SEE THE 'NOTE' (above) for key info about this week's puzzle and SEE THE LAST CLUE DOWN for the explanation of last week's puzzle.]
diacritic
Clue
Mark that appears four times in this puzzle (hint: the baseball player who's the answer to this puzzle uses one, too)
Definition
distinguishing
four
Clue
Number of times this puzzle's theme word appears diagonally in the grid (to complete the puzzle, shade those words plus the Down answers that begin where they meet)
