Name of the little car taking the doctor round (7)
I believe the answer is:
dominic
'name of the little car' is the definition.
The definition suggests a singular noun which matches the answer.
'taking the doctor round' is the wordplay.
'taking' becomes 'mini' (I can't justify this - if you can you should give a lot more credence to this answer).
'the doctor' becomes 'doc' (synonyms).
'round' means one lot of letters goes inside another.
'mini' placed within 'doc' is 'DOMINIC'.
Can you help me to learn more?
(Other definitions for dominic that I've seen before include "Priest" , "Man's name" , "Man" .)