### Clue: Artist and singer's aid — he joins film director with band of the '70s (12)
### Answer: MICHELANGELO 
 ### Explanation: Artist and singer's aid — he joins film director with band of the '70s (12)
**MIC** ("singer's aid") + **HE** + (Fritz) **LANG** ("film director") + **E.L.O.** ("band of the 70s")