The Milky Way, for example (6)
I believe the answer is:
galaxy
'the milky way for example' is the definition.
(milky way is a kind of galaxy)
This is all the clue.
(Other definitions for galaxy that I've seen before include "A lot of stars" , "many stars" , "System of stars - assembly of talent" , "Spiral, elliptical, group of stars" , "Vast number of stars" .)