Friendless, solitary (8)
I believe the answer is:
lonesome
This clue is a double definition.
'friendless' is the first definition.
(I've seen this in another clue)
'solitary' is the second definition.
(I know that solitary can be written as lonesome)
(Other definitions for lonesome that I've seen before include "Solitary and sad" , "Isolated" , "Trail of the - Pine (Laurel and Hardy in Way Out West)" , "Sad and lonely" , "On one's own" .)