Benevolence of sort shown by head (8)
I believe the answer is:
kindness
'benevolence' is the definition.
(I've seen this in another clue)
'sort shown by head' is the wordplay.
'sort' becomes 'kind' (synonyms).
'shown by' means one lot of letters go next to another.
'head' becomes 'ness' (ness is a headland).
'kind'+'ness'='KINDNESS'
'of' is the link.
(Other definitions for kindness that I've seen before include "Warmheartedness, consideration" , "Benevolence" , "Good deed" , "Warmheartedness, tenderness" , "Benevolent act" .)