Droplet; rip (4)
I believe the answer is:
tear
I believe this is a double definition.
'droplet' is the first definition.
(I've seen this in another clue)
'rip' is the second definition.
(synonyms)
(Other definitions for tear that I've seen before include "It's secreted by the lachrymal gland" , "Lacerate - sign of sorrow" , "A drop of optical moisture" , "Rip, pull apart" , "Optical sign of sorrow" .)