I rant and rave about account (9)
I believe the answer is:
narrative
'account' is the definition.
(narrative is a kind of account)
'i rant and rave about' is the wordplay.
'and' is a charade indicator (letters next to each other) (I've seen this in other clues).
'about' is an anagram indicator.
'i'+'rant'='irant'
'irant' put after 'rave' is 'raveirant'.
'raveirant' anagrammed gives 'NARRATIVE'.
(Other definitions for narrative that I've seen before include "Story line" , "Account of connected events, a story" , "Tale" , "Spoken account; story" , "Story recounting events" .)