Followed a girl in the end (6)
I believe the answer is:
ensued
'followed' is the definition.
(I've seen this before)
'a girl in the end' is the wordplay.
'a girl' becomes 'sue' (girl's name).
'in' is an insertion indicator.
'sue' going within 'end' is 'ENSUED'.
(Other definitions for ensued that I've seen before include "Resulted, followed" , "Occurred afterwards" , "Happened afterwards or as a result" , "Followed as a consequence" , "Befell" .)