Unable to be comforted (12)
I believe the answer is:
disconsolate
'unable to be comforted' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for disconsolate that I've seen before include "Sad; beyond comfort" , "Dejected" , "Melancholy" , "Unhappy and impossible to comfort" , "Low in spirits" .)