City observed after conflict (6)
I believe the answer is:
warsaw
'city' is the definition.
(Warsaw is an example)
'observed after conflict' is the wordplay.
'observed' becomes 'saw' (seen).
'after' is a charade indicator (letters next to each other).
'conflict' becomes 'war' (war is a kind of conflict).
'saw' put after 'war' is 'WARSAW'.
(Other definitions for warsaw that I've seen before include "Poland's largest city" , "Largest city in Poland" , "Capital city on the Vistula" , "Capital city of Poland" , "Polands capital" .)