Clue: Notorious wolf introduced to flock, any ewes terrified! (5,4)
Answer: KANYE WEST
Explanation: Definition: Notorious wolf
Hidden in *[introduced to]* "floc**K ANY EWES T**errified" 
*I have no idea why Kanye West would be clued as "notorious woif", unless it has something to do with him "chasing the ladies", but from what little I know of him, he is no more a wolf in that sense than any other rapper.