### Clue: Delayed action with stand-in starting film scene (6,4)
### Answer: DOUBLE TAKE 
 ### Explanation: Definition: Delayed action
  DOUBLE(a stand-in, usually for an actor, to do the dangerous stunts) **placed before**(starting) TAKE(recording of a film scene without any interruption or break; several takes of the same scene often required before the director is satisfied with the result) 
Defn: A delayed reaction by a person to a remark or a situation, often used by double-acts in comedy, perfectly timed by the likes of Morecambe and Wise, and the Smothers Brothers.  An apt surface to the clue.