Signs of sorrow (5)
I believe the answer is:
tears
'signs of sorrow' is the definition.
(tears cried in sorrow)
This is all the clue.
(Other definitions for tears that I've seen before include "charges" , "Rips with signs of sorrow" , "Shed them and cry" , "exuding drops" , "Lacerations (before bedtime?)" .)