Passed the drink around, one fine day! (5)
I believe the answer is:
given
'passed' is the definition.
The answer and definition can be both related to change as well as being past participle verbs.
Perhaps you can see a link between them that I can't see?
'drink around one fine day' is the wordplay.
'drink' becomes 'gin' (gin is an alcoholic drink).
'around' is an insertion indicator.
'one fine day' becomes 've' (I am not sure about this - if you are sure you should believe this answer much more).
'gin' placed around 've' is 'GIVEN'.
'the' acts as a link.
Can you help me to learn more?
(Other definitions for given that I've seen before include "Handed over; an 18 dn" , "Bestowed" , "Accepted as true" , "Lent?" , "Known fact" .)