### Clue: One calling out "help" on programme after turning over film (10)
### Answer: TELEPHONER 
 ### Explanation: Definition: One calling
 [ **Anagram of**(out) HELP + ON + ER(US television programme about a hospital emergency room) ] **placed below**(after, in a down clue) **reversal of**(turning over) ET(the Steven Spielberg sci-fi film).