Answer:

REFS

Answer	Crossword Clue
REFS	WWF officials
REFS	Court adjudicators
REFS	Ring officials

REFS	Court whistlers
REFS	Gridiron judges
REFS	WBC workers
REFS	Traveling whistlers?
REFS	Whistle blowers
REFS	Traveling callers
REFS	They sometimes count to ten
REFS	NFL zebras

REFS	Sports judges
REFS	Makes the calls
REFS	"Zebras," in sports slang
REFS	Zebras
REFS	Gridiron zebras
REFS	Gridiron "zebras"
REFS	Foul callers
REFS	Ump's cohorts

REFS	Jump-ball tossers
REFS	Whistle-blowers
REFS	Whistle blowers?
REFS	Rule enforcers
REFS	Sports officials
REFS	They make a lot of calls
REFS	Frequent whistlers
REFS	Ring bosses

REFS	Some penalty assessors
REFS	Football officials
REFS	Grid officials
REFS	Ice arbiters
REFS	Some whistle blowers
REFS	Striped-shirt wearers
REFS	Officials on the court
REFS	Officiates, in a way

REFS	Ring arbiters
REFS	Court call makers
REFS	Trio in an NBA game
REFS	Calls the game
REFS	Flag throwers, at times

Crossword

a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.