Sentence:  I corralled the judge, and we started off across the fields.... And thus we came by a circuitous route to Mohair,.... My <WSD>client</WSD> welcomed the judge […] and they disappeared together into the Ethiopian card-room, which was filled with the assegais and exclamation point shields Mr. Cooke had had made at the sawmill at Beaverton. 
Meaning of the word marked with <WSD> tags:  One who receives help or services from a professional such as a lawyer or accountant.