Got drunk into a bed (8)
I believe the answer is:
Here is my best explanation:
'got' is the definition.
(obtaining is a kind of getting)
'drunk into a bed' is the wordplay.
'drunk' indicates anagramming the letters.
'intoabed' is an anagram of 'OBTAINED'.
(Other definitions for obtained that I've seen before include "Came into possession of", "Acquired", "Got something", "Got, procured", "Procured" and "Into a bed (anag.)".)