To find ancient city in this province could be expected (5)
I believe the answer is:
natal
'to find ancient city in this province could be expected' is the definition.
'natal' can be an answer for 'province' (I have seen 'old province' mean 'natal' so perhaps 'province' could also mean 'natal'). I'm not sure about the remainder of the definition.
This is the entire clue.
Can you help me to learn more?
(Other definitions for natal that I've seen before include "of births" , "Like a birthday" , "Pertaining to birth" , "of an ass?" , "African area" .)