Number of F's in this puzzle's answer grid

Question:

Answer:

ONE

Length:

Similar Crossword Questions:

Number of letters in the shortest answer in this puzzle
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)
1967 Box Tops hit about part of a puzzle answer grid?
Number of Qs in this puzzle's grid
Using both sides with equal frequency (like the letters in this puzzle's answer grid?)
Number of X's in this puzzle's answer
Has an exciting opening number, say ... or what the answer to each starred clue does?
Number of Es in this puzzle?
Enclosure ... and an alphabetical listing of letters not appearing elsewhere in this puzzle's answer
Number of tiles per Scrabble set for the letter at the end of the answer to each starred clue
Word or phrase that has no repeated letters (every answer in this puzzle is an example of one)
Popular number-logic puzzle
16 of these are hidden in the answer grid, each reading left, right, up, down or diagonally in an unbroken straight line
Result of not following through (of which there are four examples in this puzzle's grid)
Set of which all seven elements are fittingly hidden in the solved puzzle grid
Anti-abuse org. [To see the original color version of this puzzle's unusual grid, visit sundaycrosswords.com.]
What every other letter of every answer in this puzzle is
Web concerns ... and based on six familiar names hidden in rows 1, 4, 12 and 15 of this puzzle grid, what the black squares in those rows symbolize
Fitting final answer for this puzzle?
Mark that appears four times in this puzzle (hint: the baseball player who's the answer to this puzzle uses one, too)
Number of Z's in this grid
Home-field advantage in football ... or what the last square of the answer to this clue represents in this puzzle
Unlike this puzzle's grid
Number of times the letter 'U' appears in each of this puzzle's eight longest answers
Classic Belushi comedy, or an apt description of this puzzle's grid?