Answer: PROS

AnswerCrossword Clue
PROSThey're all for it
PROSPaid athletes
PROSHalf of some two-column lists
PROSMost sports stars
PROSNBAers, e.g.
PROSReasons for
PROSSome arguments
PROSSupporters
PROSYea-sayers
PROSMajor leaguers
PROSNBA players
PROSPositive aspects
PROSThey're paid to play
PROSAdvocates
PROSAll in favor
PROSOld hands
PROSCountry club employees
PROSUpside list
PROSAmateurs' opposites
PROSCountry club instructors
prosperson upholding the affirmative in a debate
PROSSpecialists
PROSLions and Tigers and Bears
PROSMost U.S. Open participants
PROSOne side of an issue
PROSTennis teachers, e.g.
PROSAdvantages
PROSThose in favor
PROSOktoberfest toast
PROSPaid performers
PROSThey play for pay
PROSExperts in their fields
PROSWhizzes
PROSAces
PROSVotes for
PROSThe "for" camp
PROSPaid players
PROSExperts
PROSPaid experts
PROSMavens