Streams of Whiskey dropped from bangers - Rehab 's back at the top (6)
I believe the answer is:
bursts
'streams' is the definition.
The definition and answer can be both acts as well as being plural nouns.
Maybe you can see an association between them that I can't see?
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for bursts that I've seen before include "Breaks open suddenly" , "Explodes or ruptures" , "Explodes or breaks open" , "Explodes from inside pressure like balloon" , "Spurts" .)