Feature of six other long answers in this puzzle

Question:

Answer:

HIDDENCOSTS

Length:

Similar Crossword Questions:

Feature of this puzzle's three long Down answers
Main thoroughfare in Manhattan (one can be found in each of the four long answers in this puzzle)
"Two-way" thoroughfares at both ends of this puzzle's long answers
Puzzle title people hidden in eight long answers
What each of the four long answers in this puzzle is
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)
Phrase whose abbreviation is the key to four long puzzle answers
"Be careful what you say," and a hint to a feature shared by this puzzle's perimeter answers
Like the identified car models inside this puzzle's long answers
Big bank held by 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
Chemical reaction phenomenon, and what occurs in four symmetrical pairs of long answers in this puzzle
Provide recon, and another hint to this puzzle's long answers
Quarrel ... or a feature of five answers in this puzzle
Game in which the puzzle's long answers are pieces
Puzzle honoree found in eight long answers
Simple substances split in eight long answers in this puzzle
What this puzzle's long answers each have three of
Magic words ... or a hint to the other long answers in this puzzle
Weather Channel feature (it's the puzzle theme found in a quintet of answers)
They're hidden in seven long answers in this puzzle
TV feature, and a clue to six other answers in this puzzle
State short forms strung together in 12 long answers in this puzzle
Brief version of this puzzle's title hidden in eight long puzzle answers