Answer:

spar

AnswerCrossword Clue
SPARSail support
SPARExchange verbal blows
SPARHave a verbal dispute
SPARMast
SPARWork out
SPARWork out with a pug
SPAROnetime USCG member
SPARPrepare for fight night
SPARBox
SPARRigging support
SPARShip's pole
SPARShadowbox
SPARFight, but not seriously
SPARPractice for a bout
SPARBox a bit
SPARBoom or box
SPARBoom or gaff
SPARTrade jabs
SPARDerrick part
SPARTrain in a ring
SPARGo a round or two
SPARHaggle with Hagler
SPARPractice pugilism
SPARTrain for bouts
SPARCome to blows
SPARPrepare for a match
SPARGo toe-to-toe
SPARBox on a mat
SPARTrade jabs or barbs
SPARTrade punches
SPARWrangle
SPARDebate (with)
SPARHave a debate
SPARPrepare to box
SPARTussle
SPARBox to train
SPARPractice for a prizefight
SPARTrain for a match
SPARBandy words
SPARPractice on canvas