Drink situation that may be taken for granted (11)
I believe the answer is:
supposition
'drink situation that may be taken for granted' is the definition.
Although both the answer and definition are singular nouns, I don't understand how one could define the other.
'drink situation' is the wordplay.
'drink' becomes 'sup' (to sup is to drink).
'situation' becomes 'position' (synonyms).
'sup'+'position'='SUPPOSITION'
Can you help me to learn more?
(Other definitions for supposition that I've seen before include "suspicion" , "It's taken for granted" , "Surmise" , "Assumption, hypothesis" , "conjecture" .)