First drink poured, exhausted (7)
I believe the answer is:
drained
'exhausted' is the definition.
(similar in meaning)
'first drink poured' is the wordplay.
'first drink' becomes 'd' (1st letter of 'drink').
'poured' becomes 'rained' (I've seen this in another clue).
'd'+'rained'='DRAINED'
(Other definitions for drained that I've seen before include "empty" , "spent" , "Tired" , "Exhausted" , "Emptied of liquid" .)