Sentence:  Each day that I went, he stood off by himself, in solitude, came politely to the tee on his own, whacked to the right and left in a <WSD>skitter</WSD> of balls, his hair pinched in a clubhouse golf cap that didn't fit, his mouth in grim determination to not make an utter fool of himself, his golf clubs' vinyl bag with the ticket attached to signal his beginner's fees were paid. 
Meaning of the word marked with <WSD> tags:  A skittering movement.