Sentence:  Everett Miller , then <WSD>assistant</WSD> director for the Garrick Gaieties , a Theatre Guild production , needed a lyricist for a song he had written ; he just happened not to need any actor at the moment , however . 
Meaning of the word marked with <WSD> tags:  a person who contributes to the fulfillment of a need or furtherance of an effort or purpose