(2d) Diggers in black suit? (6) _ _ _ D _ S. (8a) Sudden resolution. (4, 8) _ N _ _ N _ _ _ S _ _ _ . (5d) Brainy rock group this - Oh did area fade out? (9) _ A _ I _ H _ A _ , (16d) Angry altercation apparently could see such problems grid - locked! (10) C _ O _ _ _ _ _ D _ .