Classic Jaguar car goes under bridge (9)
I believe the answer is:
archetype
'classic' is the definition.
(thesaurus)
'jaguar car goes under bridge' is the wordplay.
'jaguar car' becomes 'E-Type' (sports car made by Jaguar).
'goes under' means one lot of letters go next to another.
'bridge' becomes 'arch' (I've seen this before).
'etype' after 'arch' is 'ARCHETYPE'.
(Other definitions for archetype that I've seen before include "Creepy hat (anag)" , "Original model from which others are copied" , "Very characteristic example" , "Standard - cheap tyre (anag)" , "Very typical example" .)