"These are my ____ / Slowly being eaten away” (Spandau Ballet, Gold) (5,4)

I believe the answer is:

salad days

(Other definitions for salad days that I've seen before include "Time of youth and inexperience" , "Carefree youth" , "Period of youth and inexperience - on lettuce diet?" , "Green term" , "musical" .)

I've seen this clue in The Times.

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