Her leg was broken and had to be set (6)
I believe the answer is:
glenda
'her' is the definition.
'leg was broken and had to be set' is the wordplay.
I cannot really see how this works, but
an anagram of 'leg' is 'gle' which is present in the answer.
an anagram of 'and' is 'nda' which is present in the answer.
No letters remain.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for glenda that I've seen before include "-- Jackson, actress and former MP" , "- - Jackson, Hampstead MP" , "Girl" , "--- Jackson, Br. actress" .)