Standing alone (7)
I believe the answer is:
insular
'standing alone' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for insular that I've seen before include "cut off" , "Aloof - like an island" , "Aloof - prejudiced" , "Surrounded by water - narrow - prejudiced" , "Parochial" .)