Agile figure takes cars from upper class (6)
I believe the answer is:
supple
'agile' is the definition.
(thesaurus)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for supple that I've seen before include "Moving and bending with ease" , "Lissom" , "Mobile" , "Limber" , "Flexible, not stiff" .)