Crossword Genius

Good weather in autumn; productivity late in life (6,6)

Ross

I believe the answer is:

indian summer

(Other definitions for indian summer that I've seen before include "Late heatwave" , "Unexpectedly warm period late in the year" , "Warm period in autumn" , "Welcome warmth" , "counter-wallah" .)

I've seen this clue in The Sunday Times and The Times.
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