Item with features that begin this puzzle's four longest answers

Question:

Answer:

RIVER

Length:

Similar Crossword Questions:

Org. that has four teams with non-plural nicknames, which begin this puzzle's four longest answers
Any of five that begin this puzzle's longest answers
Shades of it begin this puzzle's four longest answers
Spars in the ring, and features of the four longest puzzle answers
Word "split" in this puzzle's eight longest answers
Ocean "crossing" this puzzle's four longest answers (abbr.)
Word rearranged and hidden in this puzzle's eight longest answers
Workweek start, or an apt title for this puzzle based on an abbreviation found in its five longest answers
Charge carrier that forms a bond within each of this puzzle's four longest answers
It's zero in free-fallÂ—and, put another way, a hint to how the four longest puzzle answers were formed
What each of the other four longest answers in this puzzle is
Stocking stuffer found in seven of this puzzle's longest answers
The word, as suggested by the saying formed by the ends of this puzzle's four longest answers
Child in seven of this puzzle's longest answers
Narcissists' interests (one of which can be found in each of the puzzle's longest answers)
Where to find the first words of the four longest puzzle answers
Off one's rocker, and a hint to what the four longest puzzle answers have in common
Zamboni-prepared surface, and word that can follow the last word of the puzzle's four longest answers
Surprise quiz found in the eight longest puzzle answers
HBO's "Inside the __" (and hidden theme in this puzzle's four longest answers)
Word that goes after the start of and before the end of the five longest answers in this puzzle
Last letter in most plurals (but not in this puzzle's six longest answers, which are the only plurals in this grid)
Pet targeted by the first words of this puzzle's four longest answers
Break suggested by the starts of this puzzle's four longest answers
Letter that begins and ends this puzzle's six longest answers