He looks after our cart when damaged (7)
I believe the answer is:
curator
'he looks' is the definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.
'after our cart when damaged' is the wordplay.
'after' says to put letters next to each other.
'when damaged' indicates an anagram (I've seen this in other clues).
'our' put next to 'cart' is 'ourcart'.
'ourcart' anagrammed gives 'CURATOR'.
Can you help me to learn more?
(Other definitions for curator that I've seen before include "Artistic director" , "Museum custodian" , "Museum's administrative head" , "museum boss" , "Cultural employee" .)