Chaney Jr ruined city? (7)
I believe the answer is:
babylon
'ruined city?' is the definition.
(ancient city)
'chaney jr' is the wordplay.
I cannot really see how this works, but
'chaney' could be 'lon' (I've seen this in another clue) and 'lon' is present in the answer.
The remaining letters 'baby' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for babylon that I've seen before include "Ancient city in what is now Iraq noted for wealth and wickedness" , "Ancient capital" , "Site of hanging gardens" , "Wicked city of the Bible, on Euphrates river in central Iraq" , "Ancient ruined city in modern Iraq" .)