The French prepare something welcomed by car passenger? (7)
I believe the answer is:
legroom
'something welcomed by car passenger?' is the definition.
I can't judge whether this definition defines the answer.
'the french prepare' is the wordplay.
'the french' becomes 'le' ('the' in French).
'prepare' becomes 'groom' (eg grooming someone for a job).
'le'+'groom'='LEGROOM'
Can you help me to learn more?
(Other definitions for legroom that I've seen before include "Space in front of a seat" , "Space to stretch for seated person" , "Space between seat rows" , "Space often lacking on a plane!" , "Space to stretch out when sitting" .)