He looks after the place from which the car tour is arranged (7)
I believe the answer is:
curator
'he looks after the place from which' is the definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.
'car tour is arranged' is the wordplay.
'is arranged' indicates an anagram.
'car'+'tour'='cartour'
'cartour' is an anagram of 'CURATOR'.
'the' acts as a link.
Can you help me to learn more?
(Other definitions for curator that I've seen before include "Person in charge of a museum" , "Museum official" , "Museum keeper" , "Guardian" , "Museum officer" .)