Some burning inside to get drink (3)
I believe the answer is:
gin
'drink' is the definition.
(gin is an alcoholic drink)
'some burning inside to' is the wordplay.
'some' indicates the answer is hidden within the clue (some parts of the word are used).
'GIN' is hidden in the letters of 'burning inside to'.
'get' acts as a link.
(Other definitions for gin that I've seen before include "Spirit; trap" , "Juniper-flavoured drink" , "Alcohol for the snare" , "game of cards" , "Machine for separating cotton from its seeds" .)