Foe hiding, in a way, in the puzzle's four longest answers

Question:

Answer:

ENEMY

Length:

Similar Crossword Questions:

European acme, and word hiding in this puzzle's 5 longest answers
Support worker hiding in the eight longest puzzle answers
Bird hiding in the four longest puzzle answers
Driveway stuff (and word that's hidden in this puzzle's four longest answers)
You can find one in the four longest puzzle answers, even if you don't believe
Call hidden in this puzzle's eight longest answers that's apt for May Day?
Words to a kidder, and a hint to how this puzzle's five longest answers were created
String of letters found in this puzzle's longest Across answers
Radio studio feature, and what each of this puzzle's four other longest answers literally is
Like the six longest answers in this puzzle
Action hero's garb, and what each first word in this puzzle's four longest answers is
Annual cause of losing an hr.'s sleep hidden in this puzzle's 10 longest answers
Acidity or alkalinity measurement, which is literally 8 for this puzzle's four longest answers
Five of them are hidden in this puzzle's longest answers
Earlier flight hidden in the seven longest puzzle answers
They're found at the end of this puzzle's longest answers
The eight longest answers in this puzzle each have 13 unique ones
Halloween cry divided in this puzzle's eight longest answers
They're hidden in this puzzle's six longest answers
Number of protons by which the elements in the four longest puzzle answers have been enhanced
Dream found in this puzzle's seven longest answers
They are found in this puzzle's three longest answers
Corp. transfer found in this puzzle's four longest answers
Scholastic mean, briefly, hidden in this puzzle's seven longest answers
HBO's "Inside the __" (and hidden theme in this puzzle's four longest answers)