### Clue: Rock star's acid rush, following right musician (7,7)
### Answer: RICHARD STRAUSS 
 ### Explanation: Definition: musician
 **Anagram of**(Rock) STAR'S ACID RUSH **placed after**(following) R(abbrev. for "right").
Defn: …, or a composer of music, known for his operas.**
Strauss's operatic version: