Spars in the ring, and features of the four longest puzzle answers

Question:

Answer:

BOXES

Length:

Similar Crossword Questions:

Item with features that begin this puzzle's four longest answers
Featured article hidden in this puzzle's nine longest answers
They're hidden in this puzzle's seven longest answers
European acme, and word hiding in this puzzle's 5 longest answers
Action hero's garb, and what each first word in this puzzle's four longest answers is
The eight longest answers in this puzzle each have 13 unique ones
Things found in this puzzle's eight longest answers
Siesta taken by this puzzle's longest answers
AprÃ¨s-___ (following a day on the slopes -- and, literally, where the first words of the four longest puzzle answers can be found)
"We're on to you!" (and a hint to how this puzzle's other four longest answers were created)
Word hidden in this puzzle's longest answers
Exhibit found in this puzzle's four longest answers
Word "split" in this puzzle's eight longest answers
Sequence found in this puzzle's five longest answers
Number of times the letter 'U' appears in each of this puzzle's eight longest answers
They are found in this puzzle's three longest answers
Ocean predator, of which there are five types starting this puzzle's longest answers
Easter bunny's spring, found in this puzzle's nine longest answers
"Dough" found in this puzzle's four longest answers
Place where the starts of this puzzle's four longest answers result in a penalty
"Figure head" found in this puzzle's longest answers
Stocking stuffer found in seven of this puzzle's longest answers
Things hidden in this puzzle's eight longest answers
Org. that has four teams with non-plural nicknames, which begin this puzzle's four longest answers
NFL tiebreakers hidden in this puzzle's nine longest answers