Answer: WAVE
AnswerCrossword Clue
WAVEUndulation in the stands
WAVEIt may be new or permanent
WAVEOceanside sight
WAVESurfer's ride
WAVESurfing sine qua non
WAVEBreaker
WAVESwell sight?
WAVEThis goes around an arena
WAVESurfer's need
WAVEGreet from a distance
WAVEGreet from across the street, perhaps
WAVE-
WAVESignal "Hi!" or "Bye!"
WAVEOcean swell
WAVESurfing need
WAVESurfer's challenge
WAVESurfer's joy
WAVEWordless greeting
WAVEActivity at a football stadium
WAVESay "Hi" with a hand
waveto express by a waving movement
WAVEType of hairdo
WAVEHigh sign
WAVEStadium audience participation
WAVEUndulation
WAVEMake a motion
WAVEWaikiki ride
WAVEGroup action
WAVEIt's sometimes permanent
WAVESurfer's surface
WAVEGesticulate
WAVEBallpark antic
WAVELoose curl
WAVEFenway crowd action
WAVESwell
WAVEGreet, in a way
WAVEGestured greeting
WAVEHi sign
WAVEBreaker on the shore
WAVEHi from a float