I'm stuck on four clues... any help will be appreciated..
28 ____ whose surroundings could be virtually cloned — ha! (9)
C???I?E?N
30 Labour minister backed the introduction of ____ years in speech (8)
???T?L?Y
1 Arm supporter with ____ Nordic bomb? (6)
B?A?C?
21 Use drug ____ ecstasy, right, when leaving island (7)
O?E????