Damage carts, possibly, going to church (7)
'damage' is the definition.
(I have seen 'superficial damage' mean 'scratch' so perhaps 'damage' could also mean 'scratch')
'carts possibly going to church' is the wordplay.
'possibly' is an anagram indicator.
'going to' means one lot of letters go next to another.
'church' becomes 'ch' (common abbreviation).
'carts' with letters rearranged gives 'scrat'.
(Other definitions for scratch that I've seen before include "minor injury", "Deal with itch - cancel entry", "Superficial damage; withdraw", "Scrape", "Score with a sharp object".)