Great times (4)

I believe the answer is:

eras

'great times' is the definition.
(I've seen this in another clue)

This is all the clue.

(Other definitions for eras that I've seen before include "At least two times" , "Epochs" , "Periods, ages" , "Long and distinct periods of history" , "Periods of time" .)

I've seen this clue in The Wall Street Journal and the Evening Standard.

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