Heath has time to get 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' means one lot of letters goes inside another.
'time' becomes 't'.
'moor' placed around 't' is 'MOTOR'.
'to get' is the link.
(Other definitions for motor that I've seen before include "Engine of vehicle" , "Move quickly" , "(Transport using) engine" , "Engine - relating to movement" , "Travel by car, engine" .)