Shock where vehicle is caught in strong wind (9)
I believe the answer is:
galvanise
'shock' is the definition.
('shock'->'galvanize' is in my internal thesaurus and 'ize'->'ise')
'vehicle is caught in strong wind' is the wordplay.
'vehicle' becomes 'van' (van is a kind of vehicle).
'caught in' indicates putting letters inside.
'strong wind' becomes 'gale' (I've seen this before).
'van'+'is'='vanis'
'vanis' inserted within 'gale' is 'GALVANISE'.
'where' acts as a link.
(Other definitions for galvanise that I've seen before include "Excite" , "Electrify" , "subject to action of electric current" .)