Plant gets a drip (4)
I believe the answer is:
weed
I believe this clue is a double definition.
'plant' is the first definition.
(weed is a type of plant)
'a drip' is the second definition.
(thesaurus)
'gets' acts as a link.
(Other definitions for weed that I've seen before include "gone!" , "Marijuana (slang)" , "Wild unwanted plant - tobacco?" , "Intrusive plant; weak person" , "pot" .)