Like some wines, this doesn't last long! (3)
I believe the answer is:
sec
I believe this clue is a double definition.
'like some wines' is the first definition.
(sec means dry in wine terminology)
'this doesn't last long' is the second definition.
(short for second)
(Other definitions for sec that I've seen before include "very short space of time" , "Mo or min?" , "Jiffy" , "period not lasting long" , "Dry wine perhaps" .)