Girl beyond cruel, originally kind (5)
I believe the answer is:
class
'kind' is the definition.
(I've seen this before)
'girl beyond cruel originally' is the wordplay.
'girl' becomes 'lass' (lass can informally mean a girl).
'beyond' means one lot of letters go next to another.
'originally' suggests taking the first letters.
The first letter of 'cruel' is 'c'.
'lass' put after 'c' is 'CLASS'.
(Other definitions for class that I've seen before include "Standing" , "It may appear after working" , "pupils?" , "Elegance - form" , "period" .)