Followed a girl in the end (6)
I believe the answer is:
ensued
'followed' is the definition.
(I've seen this in another clue)
'a girl in the end' is the wordplay.
'a girl' becomes 'sue' (girl's name).
'in' indicates putting letters inside.
'sue' going into '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" .)