Take the car with learner? Nonsense! (6)
I believe the answer is:
drivel
'nonsense' is the definition.
(drivel can mean nonsensical speech or writing)
'take the car with learner?' is the wordplay.
'take the car with' becomes 'drive' (I can't explain this - if you can you should believe this answer much more).
'learner?' becomes 'l' (as in a learner driver with L-plates on their car).
'drive'+'l'='DRIVEL'
Can you help me to learn more?
(Other definitions for drivel that I've seen before include "Cobblers" , "Silly talk, twaddle" , "Claptrap" , "Nonsense, garbage" , "Nonsensical talk" .)