Affords advantage for acts of kindness (7)
I believe the answer is:
favours
'kindness' is the definition.
(I know this)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for favours that I've seen before include "indications of support" , "Approves" , "Supports or prefers one thing or person over another" , "Good turns" .)