Overturned taxi skated wildly; maybe Joan's counselling passengers (4-4,7)
I believe the answer is:
back-seat drivers
'passengers' is the definition.
(I know this)
'overturned taxi skated wildly maybe' is the wordplay.
'overturned' says the letters should be written in reverse.
'taxi' becomes 'cab' (synonyms).
'wildly' indicates an anagram.
'maybe' becomes 'rivers' (I can't explain this - if you can you should believe this answer much more).
'cab' back-to-front is 'bac'.
'skated' is an anagram of 'kseatd'.
'bac'+'kseatd'+'rivers'='BACK-SEAT DRIVERS'
'joan's counselling' is the link.
I am not very happy about this link. Some or all of it may belong to another bit of the clue.
Can you help me to learn more?