Appear to unite after end of divorce (6)
I believe the answer is:
emerge
'appear' is the definition.
(emerge can mean to appear or arrive)
'unite after end of divorce' is the wordplay.
'unite' becomes 'merge' (synonyms).
'after' is a charade indicator (letters next to each other).
'end of' indicates one should take the final letters.
The last letter of 'divorce' is 'e'.
'merge' put after 'e' is 'EMERGE'.
'to' acts as a link.
(Other definitions for emerge that I've seen before include "Come into existence" , "Materialize" , "Rise to notice" , "Come into view" , "Break out (from an egg)" .)