Car's ability revolving on friends (7,6)

I believe the answer is:

turning circle

I'm a little stuck... Click here to teach me more about this clue!

'car's ability' is the definition.
The definition suggests a singular noun which matches the answer.

'revolving on friends' is the wordplay.
'revolving' becomes 'turning' (synonyms).
'on friends' becomes 'circle' (I am not sure about this - if you are sure you should believe this answer much more).
'turning'+'circle'='TURNING-CIRCLE'

Can you help me to learn more?

(Other definitions for turning circle that I've seen before include "Tight curve for vehicle" , "Smallest possible arc for a vehicle" , "revolutionary movement" , "Measure of vehicle's manoeuvrability" , "Smallest space for vehicle to go about" .)

I've seen this clue in The Daily Express.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.