Got back concerning this writer indeed (8)
I believe the answer is:
redeemed
'got back' is the definition.
(I've seen this in another clue)
'concerning this writer indeed' is the wordplay.
'concerning' becomes 're' (both can mean on a particular topic).
'this writer indeed' becomes 'deemed' (I am not sure about this - if you are sure you should believe this answer much more).
're'+'deemed'='REDEEMED'
Can you help me to learn more?
(Other definitions for redeemed that I've seen before include "exchanged tokens" , "Restored to favour" , "Bought out of pawn" , "Bought back from pawnbroker" , "free from error" .)