Strange idol with glow shows kindness (8)
I believe the answer is:
goodwill
'kindness' is the definition.
(I've seen this before)
'strange idol with glow' is the wordplay.
'strange' indicates an anagram.
'with' says to put letters next to each other.
'idol' after 'glow' is 'glowidol'.
'glowidol' with letters rearranged gives 'GOODWILL'.
'shows' acts as a link.
(Other definitions for goodwill that I've seen before include "Benevolence" , "Benevolent feeling - business asset" , "intangible asset" , "compassion" , "friendly attitude" .)