### Clue: Stomach is churning — but he enjoys it! (9)
### Answer: MASOCHIST 
 ### Explanation: Definition: he enjoys it
  **Anagram of**(churning) STOMACH IS.
Defn:  He who enjoys pain inflicted on himself, eg. when his stomach is churning, and whatever else there is!  Yet another nice surface with intertwining definition and wordplay.