4d. Duplicates diamond that is protected by the law. (6,6). C?R?O? ??P?E?.
3d.Perhaps pilot from air force unit abanons fighter plane. (5). L?G?T.
11d. In a row over one stunning produc's individual tag. (6,6). ?E???L ?U?B??. I'm not sure if there is a misprint in the clue. It shows as "produc's". Should this be" product's" perhaps.
20d. Former secret poloce force is under arrest. (6). ?T?S??.