First of a pair of letters swapped six times in this puzzle's theme entries

Question:

Answer:

ESS

Length:

Similar Crossword Questions:

Second of a pair of letters swapped six times in this puzzle's theme entries
Period that ends Nov. 3rd, requiring a shift, and letters that shift in this puzzle's theme entries
Office building problem that's a hint to this puzzle's theme entries (see their last three letters)
Playoff series finale ... or an apt title for this puzzle considering the number and length of its theme entries
What are featured in the theme entries of this puzzle
Wintry mix revealed in the circled letters (it's the puzzle theme!)
Find new work - or what you must do to get the three theme entries' names in this puzzle
The three of this puzzle's theme entries
Challenged, or what the theme entries in this puzzle should be
The pairs of letters inserted into each of this puzzle's theme answers, for example
"Infections" inside this puzzle's theme entries
The three in each of this puzzle's theme entries
Act affectedly, and what this puzzle's theme entries do?
Like the four theme entries in this puzzle, as it were
"Home work" letters that appear at both ends of this puzzle's theme answers
It can follow the last word of this puzzle's theme entries
What each of this puzzle's theme entries contains
Where to find the theme entries of this puzzle, briefly
People who bring you this puzzle's theme entries
Theme of this puzzle, seen seven times in the grid
Levels that are split in this puzzle's theme entries
This puzzle's theme entries
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)
Like fish for fish & chips -- or this puzzle's four theme entries
Just making things up, or a synonym for a three-word phrase describing this puzzle's theme entries