Answer:

bassist

Answer	Crossword Clue
BASSIST	Flea for the Red Hot Chili Peppers, e.g.
BASSIST	The Who's John Entwistle, for one
BASSIST	Jazz group musician

BASSIST	McCartney, for one
BASSIST	Paul McCartney or Sting
BASSIST	McCartney, notably
BASSIST	Grateful Dead's Phil Lesh, e.g.
BASSIST	McCartney, as a Beatle
BASSIST	Low man in the combo
BASSIST	Certain guitar player
BASSIST	String quartet member

BASSIST	John Entwistle, e.g.
BASSIST	Jazz's Charles Mingus, e.g.
BASSIST	One of the strings
BASSIST	Bill Wyman, in the Rolling Stones
BASSIST	Paul McCartney in the Beatles
BASSIST	Introduction of Band Aid musician (7)
BASSIST	Sting, e.g.
BASSIST	Jazz band member

BASSIST	Wyman of the Stones, e.g.