Pure
1d.the harbour?soundedresigned after clue i'd heard(8)Q?A?S????
6d.sustained in music turned out notes after a brief second(9)??S?E???O
7d.French composer and American songwriter not entirely linked to Australia(7)??R?I??
8d.brightness initially covered by rubbish(6)??T?E?
16d.horseman,we hear,caught on horseback in sporting contest(5,3)?Y?????P
19d.insect in quantity of hair attached to part of head(6)???W??
21d.refuse to accept one evidence of intelligence(5)????N
thanks in advance