Bill's getting new car, that's capital (5)
I believe the answer is:
accra
'capital' is the definition.
(Accra is an example)
'bill's getting new car' is the wordplay.
'bill' becomes 'ac'.
'getting' is a charade indicator (letters next to each other).
'new' indicates an anagram.
'car' is an anagram of 'cra'.
'ac'+'cra'='ACCRA'
'that's' acts as a link.
(Other definitions for accra that I've seen before include "Largest city of Ghana" , "West Africa capital" , "Ghana's capital" , "Main city of Ghana" , "Ghanaian capital" .)