Island group including Mull, Islay, Benbecula and Barra (8)
I believe the answer is:
hebrides
(Other definitions for hebrides that I've seen before include "Strangely, his breed comes from Scottish archipelago" , "Shipping Forecast area" , "Island group (New, Inner and Outer)" , "Island group off NW Scotland" , "Debris he found in islands off NW Scotland" .)