Genial or kindly (6)
I believe the answer is:
benign
This clue is a double definition.
'genial' is the first definition.
(similar in meaning)
'kindly' is the second definition.
(I've seen this before)
(Other definitions for benign that I've seen before include "Liberal" , "Favourable" , "Obliging" , "Harmless or kind" , "Medically curable" .)