Flow (3)
'flow' is the definition.
(I know that run is a type of flow)
This is all the clue.
(Other definitions for run that I've seen before include "On the . . . - fleeing from pursuit" , "Dart" , "Manage; career" , "Race; manage" , "Move fast with the hens?" .)
'flow' is the definition.
(I know that stream is a type of flow)
This is the entire clue.
(Other definitions for stream that I've seen before include "comprising a load of drips?" , "'Brook, runnel (6)'" , "Running liquid" , "Master of a tributary" , "Current - file" .)
'flow' is the definition.
(I know that current is a type of flow)
This is all the clue.
(Other definitions for current that I've seen before include "Flow of electricity" , "Popular" , "Flow, of a river say" , "Stream - in the news" , "flower" .)