Answer: cannonball

AnswerCrossword Clue
CANNONBALLSplashy dive
CANNONBALLSpherical projectile
CANNONBALL"Human" circus performer
CANNONBALLSpherical missile
CANNONBALLA serve from Pancho Gonzales.
CANNONBALLCivil War missile.
CANNONBALLDyan-Lucille
CANNONBALLSaxophonist Adderley
CANNONBALLArmament for a man-of-war
CANNONBALLDive done with the arms around the knees
CANNONBALLProjectile of old
cannonballA round metal or stone projectile fired from a cannon in former times
cannonballA jump into water performed upright with the knees clasped to the chest
cannonballa ball to be shot from a cannon to go like a cannonball