Heath has time for car (5)
I believe the answer is:
motor
'car' is the definition.
(thesaurus)
'heath has time' is the wordplay.
'heath' becomes 'moor' (I've seen this before).
'has' indicates putting letters inside.
'time' becomes 't'.
'moor' going around 't' is 'MOTOR'.
'for' is the link.
(Other definitions for motor that I've seen before include "Driver" , "Car (informal)" , "Engine of vehicle" , "Make good progress" , "Wheels" .)