To us, points of advantage (4)
I believe the answer is:
uses
'to us points of advantage' is the definition.
I can't tell whether this defines the answer.
'to us points' is the wordplay.
'points' becomes 'es' (E is an example).
'us'+'es'='USES'
Can you help me to learn more?
(Other definitions for uses that I've seen before include "Puts into service" , "Sues (anag.)" , "What an employer does" , "manipulates" , "Purposes; consumes" .)