Theme of this puzzle, seen seven times in the grid

Question:

Length:

Similar Crossword Questions:

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)
Puzzle theme which appears nine more times in the grid
Theme of this puzzle, whose members are hidden throughout the grid
First of a pair of letters swapped six times in this puzzle's theme entries
Word appearing eight times in this puzzle grid
Second of a pair of letters swapped six times in this puzzle's theme entries
Key to this puzzle's theme, in English
Like this puzzle's theme, to conservatives?
What are featured in the theme entries of this puzzle
What the puzzlemaker did to the name in each of this puzzle's theme answers?
Actress who's the inspiration for this puzzle's theme?
Comedic actor Don of this puzzle's theme
Four __ (theme of the puzzle)
Asleep ... or a hint to this puzzle's theme
Word that may precede twelve words in this puzzle's grid
TV show whose working title was "Please Stand By" (and what you'll have to cross 18 times when solving this puzzle)
"Gross!" (and a hint to this puzzle's theme)
Pithy sayings (four well-known ones containing the circled word are the keys to unlocking this puzzle's theme)
1972 #1 hit, and what can be found nine times in this grid
Question not asked in this puzzle's theme words
Common refrain that's a hint to this puzzle's theme
Joyce Kilmer poem and this puzzle's theme
Theme of this puzzle/Visit briefly
School phrase with a clue to this puzzle's theme
ConfuseÂ—or what to do to four common phrases to form this puzzle's theme answers