Came to wonder about fine (5)
I believe the answer is:
awoke
'came to' is the definition.
(I've seen this before)
'wonder about fine' is the wordplay.
'wonder' becomes 'awe' (awe is a kind of wonder).
'about' indicates putting letters inside.
'fine' becomes 'ok' ('OK' can be a synonym of 'fine').
'awe' placed around 'ok' is 'AWOKE'.
(Other definitions for awoke that I've seen before include "Emerged from sleep" , "Came to life" , "Stopped sleeping" , "Became active again" , "Came to consciousness" .)