Sentence:  On "Deadwood" there is a <WSD>Craft Service</WSD> guy who cleans up after the horses. [...] Now that's not the same guy who makes your sandwiches, but still it's a <WSD>Craft Service</WSD> person who specializes in keeping the set clean. 
Meaning of the word marked with <WSD> tags:  The department that provides miscellaneous general services on the set.