Some other age and time (3)
I believe the answer is:
era
'time' is the definition.
(era is a kind of time)
'some other age and' is the wordplay.
'some' indicates the answer is hidden within the clue (some of the parts of the word are used).
'ERA' can be found hidden inside 'other age and'.
(Other definitions for era that I've seen before include "US equality law" , "Special time" , "Are involved in time span" , "Characteristic period" , "quite some time" .)