Ran out of drink and cursed, half-cut (6)
I believe the answer is:
lapsed
'ran out of' is the definition.
(I've seen this before)
'drink and cursed half-cut' is the wordplay.
'drink' becomes 'lap' (lapping is a kind of drinking**).
'and' is a charade indicator (letters next to each other).
'half cut' indicates taking half.
'cursed' halved is 'sed'.
'lap'+'sed'='LAPSED'
(Other definitions for lapsed that I've seen before include "Expired or slipped back" , "Became void through disuse" , "Became invalid through disuse" , "No longer active or practising" , "Out of date" .)