Answer: flailed

AnswerCrossword Clue
FLAILEDSwung wildly
FLAILEDMade things harder for the lifeguard
FLAILEDMoved one's arms erratically
FLAILEDBeat
FLAILEDThreshed grain
FLAILEDThreshed.
FLAILEDBeaten.
FLAILEDThreshed
FLAILEDThreshed or thrashed
FLAILEDThrashed (about)
FLAILEDPunched wildly
FLAILEDComplicated a lifeguard's rescue
flailedFLAIL, to thresh about
flailedto strike or strike at, as with a flail
flailedinstrument for threshing grain