Suffering, so tear hair out? (8)
I believe the answer is:
distress
This clue is a double definition.
'suffering' is the first definition.
(I know that suffering can be written as distress)
'tear hair out?' is the second definition.
(remove tresses)
'so' acts as a link.
(Other definitions for distress that I've seen before include "Psychological suffering" , "Affliction" , "Misery" , "Anguish - trouble - danger" , "SOS is such a signal" .)