Crossword Genius

Kind nurse, extremely lonely (8)

Ross

I believe the answer is:

sisterly

'kind' is the definition.
(thesaurus)

'nurse extremely lonely' is the wordplay.
'nurse' becomes 'sister' (I've seen this before**).
'extremely' suggests removing the centre.
'lonely' with its centre taken out is 'ly'.
'sister'+'ly'='SISTERLY'

(Other definitions for sisterly that I've seen before include "relatively close" , "Friendly in a female way" , "I try less (anag.)" , "Like a female relative" , "Reportedly none" .)

I've seen this clue in The Telegraph.
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