Joey? (4,6)

I think it could be either:

Which length description are you looking for?:

4,6

baby boomer

'joey?' is the definition.
(I've seen this before)

This is all the clue.

(Other definitions for baby boomer that I've seen before include "Joey" , "one arriving in a crowd" , "One of many born after WW2" , "born just after the war?" , "Person born shortly after WWII" .)

I've seen this clue in the Sydney Morning Herald.

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