Just after, everything's fine (3,5)
I believe the answer is:
all right
'fine' is the definition.
('all right' can be a synonym of 'fine')
'just after everything's' is the wordplay.
'just' becomes 'right' ('right' can be similar in meaning to 'just').
'after' is a charade indicator (letters next to each other).
'everything' becomes 'all' (I've seen this before).
'right' after 'all' is 'ALL-RIGHT'.
(Other definitions for all right that I've seen before include "Very well, I'll do it" , "no mistake!" , "Satisfactory; allowable" , "unharmed?" , "Very well, as you ask - everything's fine" .)