In the car, this beggar's a bit of a fidget (6)
I believe the answer is:
cadger
'in the car this beggar's a bit of a fidget' is the definition.
'cadger' can be an answer for 'beggar's' (cadger is a kind of beggar). I am unsure of the remainder of the definition.
This is all the clue.
Can you help me to learn more?
(Other definitions for cadger that I've seen before include "Scrounger seeking help" , "Graced (anag)" , "One who scrounges and begs" , "Sponger" , "Graced with scrounger" .)