Half-moon street (8)
I believe the answer is:
crescent
I believe this clue is a double definition.
'half-moon' is the first definition.
(thesaurus)
'street' is the second definition.
(thesaurus)
(Other definitions for crescent that I've seen before include "Shape of new moon" , "Waxing process could show one" , "Curved row of houses" , "Shape of moon in first or last quarter" , "New moon shaped" .)