Metal coming from city church first (6)
I believe the answer is:
chrome
'metal' is the definition.
(chrome is a kind of metal)
'city church first' is the wordplay.
'city' becomes 'rome' (Rome is an example**).
'church' becomes 'ch' (common abbreviation).
'first' says to put letters next to each other.
'rome' put after 'ch' is 'CHROME'.
'coming from' acts as a link.
(Other definitions for chrome that I've seen before include "Shiny metallic plating" , "Metal plating - type of yellow" , "Shiny metallic coating" , "Chinese callisthenic system" , "Metallic element" .)