Pushing driving seat that's faulty (11)
I believe the answer is:
advertising
'pushing' is the definition.
The definition and answer can be both acts as well as being singular nouns.
Perhaps you can see a link between them that I don't see?
'driving seat that's faulty' is the wordplay.
'that's faulty' indicates an anagram.
'driving'+'seat'='drivingseat'
'drivingseat' with letters rearranged gives 'ADVERTISING'.
Can you help me to learn more?
(Other definitions for advertising that I've seen before include "Publicity needed!" , "Commercial world?" , "Public promotion" , "Publicising" .)