Show remorse about initially talking about writer (6)
I believe the answer is:
repent
'show remorse' is the definition.
(I've seen this in another clue)
'initially talking about writer' is the wordplay.
'initially talking' becomes 'ret' (I am not sure about this - if you are sure you should believe this answer much more).
'about' is an insertion indicator.
'writer' becomes 'pen' (something which writes).
'ret' placed around 'pen' is 'REPENT'.
'about' is the link.
Can you help me to learn more?
(Other definitions for repent that I've seen before include "Express regret" , "Turn away from sin" , "Be contrite, ye sinners" , "Be ashamed" , "Feel guilty" .)