Nurse Lange, possibly? (5)
I believe the answer is:
angel
'nurse' is the definition.
(collins dictionary)
'lange possibly?' is the wordplay.
'possibly?' indicates anagramming the letters (I've seen 'possibly' mean this).
'lange' with letters rearranged gives 'ANGEL'.
(Other definitions for angel that I've seen before include "somewhere in Islington" , "Winged messenger" , "Investor in a theatrical venture" , "Heavenly spirit" , "Old coin; theatre investor" .)