### Clue: Back Duke Ellington for a start, on guitar (8)
### Answer: DEFENDER 
 ### Explanation: Definition: Back
 **The 1st letters, respectively, of**(… for a start) "Duke Ellington" **placed above**(on, in a down clue) FENDER(a famous make of solid-body electric guitars).
Defn: …, a player whose responsibility is to guard the goal in a team game like football.