Rashly, leader has point inserted in official record (8)
I believe the answer is:
headlong
'rashly' is the definition.
(I know that rashly can be written as headlong)
'leader has point inserted in official record' is the wordplay.
'leader' becomes 'head' (head is a kind of leader).
'has' means one lot of letters go next to another.
'point' becomes 'n' (North).
'inserted in' means one lot of letters goes inside another.
'official record' becomes 'log' (log can mean an official record of something).
'n' put into 'log' is 'long'.
'head'+'long'='HEADLONG'
(Other definitions for headlong that I've seen before include "without thinking?" , "Impetuous" , "Hasty and rash, falling or plunging" , "not considered" , "Precipitate (flight)" .)