A house and a car for one turning heads (6)
I believe the answer is:
gemini
'a house' is the definition.
(each star sign has an astrological house)
'a car for one turning heads' is the wordplay.
'a car' becomes 'mini' (Mini Cooper**).
'for one' becomes 'eg' (I've seen this in other clues).
'turning' says the letters should be written in reverse.
'heads' is a charade indicator (letters next to each other) (some letters go ahead of others).
'eg' written backwards gives 'ge'.
'mini' after 'ge' is 'GEMINI'.
'and' is the link.
(Other definitions for gemini that I've seen before include "Castor and Pollux constellation" , "House" , "Twins constellation" , "space programme" , "Twins star-sign" .)