Car shortly carrying a learner driver (6)
I believe the answer is:
saloon
'car' is the definition.
(I've seen this before)
'shortly carrying a learner driver' is the wordplay.
'shortly' becomes 'soon' ('soon' can be a synonym of 'shortly').
'carrying' indicates putting letters inside.
'learner driver' becomes 'l' (I've seen this in other clues).
'a'+'l'='al'
'soon' placed around 'al' is 'SALOON'.
(Other definitions for saloon that I've seen before include "Car; public room" , "Car with separate boot" , "Boozer or shape of car" , "Large public room" , "Pub room" .)