Asphalt (3)
'asphalt' is the definition.
(synonyms)
This is all the clue.
(Other definitions for tar that I've seen before include "Road-making substance" , "Old salt or liquid from coal" , "Sailor; bitumen" , "not put on ship in proverbial case of false economy?" , "Viscous bituminous substance" .)
'asphalt' is the definition.
(thesaurus)
This is all the clue.
(Other definitions for pavement that I've seen before include "Roadside walkway" , "Street walkway" , "Footpath" , "Angel --- (J B Priestley)" , "Area for pedestrians" .)