Phrase whose abbreviation is the key to four long puzzle answers

Question:

Answer:

IDEST

Length:

Similar Crossword Questions:

"Two-way" thoroughfares at both ends of this puzzle's long answers
Game in which the puzzle's long answers are pieces
Sweet, or, read another way, a hint to five long puzzle answers
End of a nursery rhyme, or the fate of this puzzle's other three long answers
What each of the four long answers in this puzzle is
Like the identified car models inside this puzzle's long answers
Cryptographers' successes (and what can be found in the circles in this puzzle's long answers)
Show since 12/17/1989 whose five main family members are hidden in this puzzle's other long across answers
They're hidden in seven long answers in this puzzle
Puzzle title people hidden in eight long answers
Business term found in eight long puzzle answers
List shortener hidden in eight long puzzle answers
Main thoroughfare in Manhattan (one can be found in each of the four long answers in this puzzle)
Magic words ... or a hint to the other long answers in this puzzle
Movie good guys responsible for the circled squares in eight long puzzle answers
Speak derisively, and a hint to how this puzzle's long answers were created
Chemical reaction phenomenon, and what occurs in four symmetrical pairs of long answers in this puzzle
Simple substances split in eight long answers in this puzzle
State short forms strung together in 12 long answers in this puzzle
Workweek start, or an apt title for this puzzle based on an abbreviation found in its five longest answers
Big bank held by this puzzle's long answers
It uses only the 12 letters A, E, H, I, K, L, M, N, O, P, U and W (like eight long answers in this puzzle)
Each of this puzzle's long Across answers sounds like one
Brief version of this puzzle's title hidden in eight long puzzle answers
Provide recon, and another hint to this puzzle's long answers