8a knock - no bell - holds door handle (4) ? N ? ?
3d carbon efficient as strong ink (5) C ? ? ? E
12a wild praise for old country (6) ? E ? ? ? A
13d respect foreign staff (7) ? ? ? ? ? ? ?
20a precise sound by the coast (8) ? ? ? ? ? R ? L
15d attacks fashionable streets (7) I ? R ? ? ? ?S