Here are the possible solutions for lines in this puzzle's theme clue
Answer
Clue
Relevancy
diagonals
Clue
Lines on which you will find the ends of this puzzle's theme entries
Definition
DIAGONAL, an oblique line
ode
Clue
Lines, in this puzzle's theme
Definition
an elaborate lyric addressed to someone or something
info
Clue
Theme word inside this puzzle's theme words
Definition
(short for) information
lllllllllllllllllllll
Clue
Much of the Smurfs' theme song, and this puzzle's theme
rawhide
Clue
Classic TV theme song covered by this puzzle's theme duo
Definition
to beat with a type of whip
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)
Definition
the cardinal number next above three
skewedtooneside
Clue
Like this puzzle's theme, to solvers concerned with puzzle symmetry?
wordladder
Clue
Puzzle invented by Lewis Carroll (and a hint to this puzzle's theme)