Slight backtracking later on, girl admits (6)
I believe the answer is:
ignore
'slight' is the definition.
(synonyms)
'backtracking later on girl admits' is the wordplay.
'backtracking' says the letters should be written in reverse.
'admits' indicates a hidden word.
'erongi' can be found hidden inside 'later on girl'.
'erongi' written backwards gives 'IGNORE'.
(Other definitions for ignore that I've seen before include "Neglect" , "Spurn" , "Blank" , "Fail to observe" , "Region (anag)" .)