Instill confidence in (8)
I believe the answer is:
reassure
'instill confidence in' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for reassure that I've seen before include "Dispel misgivings" , "Take away a person's doubts or fears" , "Comfort, convince again" , "Remove anxiety over erasures" , "Remove doubts about erasures" .)