Fall in drops (4)
'fall in drops' is the definition.
(synonyms)
This is all the clue.
(Other definitions for drip that I've seen before include "Fall in drops - weedy bloke" , "Ineffectual type" , "Insubstantial person - trickle" , "Fall in small blobs" , "Means of intravenous feeding" .)
(Other definitions for spatter that I've seen before include "spray" , "shower" , "Sprinkle" , "Set part (anag.)" , "Cover with droplets" .)