"My Generation" group (3,3)
I believe the answer is:
the who
'my generation group' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for the who that I've seen before include "Tommy, Quadrophenia rock group" , "British pop group" , "60s rock group" , "Loud rock band" , "questionable identity?" .)