Narrating another reckoning (10)
I believe the answer is:
recounting
'narrating' is the definition.
('recount' can be a synonym of 'narrate')
'another reckoning' is the wordplay.
'another' becomes 're' (I've seen this in other clues).
'reckoning' becomes 'counting' (synonyms).
're'+'counting'='RECOUNTING'
(Other definitions for recounting that I've seen before include "Describing" , "activity in a close election" .)