Virtuous man shows kindness (8)
I believe the answer is:
goodwill
'kindness' is the definition.
(I've seen this before)
'virtuous man' is the wordplay.
'virtuous' becomes 'good' (synonyms).
'man' becomes 'will' (short for William).
'good'+'will'='GOODWILL'
'shows' acts as a link.
(Other definitions for goodwill that I've seen before include "Disposition to kindness" , "friendly attitude" , "intangible asset" , "Benevolence" , "compassion" .)