### Clue: Composer with second-rate skill "satisfactory" (6)
### Answer: BARTOK 
 ### Explanation: Definition: Composer
 B(letter signifying "second-rate", as opposed to "A"class) + ART(a skill) + OK(satisfactory, probably an abbreviation of "orl korrect", a humorous form of "all correct").
Answer: Béla, Hungarian composer.