Stick me inside flash car! (6)
I believe the answer is:
beamer
'flash car' is the definition.
I know nothing about this answer so I can't judge whether it can be defined by this definition.
'stick me inside' is the wordplay.
'stick' becomes 'bear' (I can't justify this - if you can you should give a lot more credence to this answer).
'inside' indicates putting letters inside.
'bear' going around 'me' is 'BEAMER'.
Can you help me to learn more?
(Other definitions for beamer that I've seen before include "ball flying past ear?" , "ball bowled at head" , "One smiling" , "Fast, high delivery (cricket)" , "Dangerous cricket delivery - used by 1, 24, 7 and 8!" .)