Raised some elephants apparently in days gone by
I believe the answer is:
past
'days gone by' is the definition.
(I've seen this in another clue)
'raised some elephants apparently' is the wordplay.
'raised' is a reversal indicator (going up in a down clue).
'some' indicates the answer is hidden within the clue (some of the parts of the word are used).
'tsap' is hidden within 'elephants apparently'.
'tsap' backwards is 'PAST'.
'in' acts as a link.
(Other definitions for past that I've seen before include "Finished, gone" , "Yesteryear" , "The time that has elapsed" , "Bygone" , "Ended" .)