Hooch homes in on cocktail (9)
I believe the answer is:
moonshine
'hooch' is the definition.
(I know that hooch can be written as moonshine)
'homes in on cocktail' is the wordplay.
'cocktail' is an anagram indicator.
'homes'+'in'+'on'='homesinon'
'homesinon' is an anagram of 'MOONSHINE'.
(Other definitions for moonshine that I've seen before include "rot" , "Nonsensical talk - illicit liquor" , "Illicit spirit - foolish talk" , "Nonsense" , "Smuggled alcohol" .)