Wire, tense, wrapped around big city vehicle (9)
I believe the answer is:
cabriolet
'wire tense wrapped around big city vehicle' is the definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Maybe they are linked in a way I don't understand?
'around big city vehicle' is the wordplay.
'around' is an insertion indicator.
'big city' becomes 'Rio' (Rio de Janeiro).
'vehicle' becomes 'cablet' (I am not sure about this - if you are sure you should believe this answer much more).
'rio' going inside 'cablet' is 'CABRIOLET'.
Can you help me to learn more?
(Other definitions for cabriolet that I've seen before include "Car with a folding top -- trace boil (anag)" , "convertible" , "vehicle" , "Horse-drawn carriage with two seats and a folding hood" , "Light two-wheeled carriage" .)