Athlete finally getting Germany's first medal returned with a drink (6)
I believe the answer is:
eggnog
'a drink' is the definition.
(eggnog is a kind of drink)
'athlete finally getting germany's first medal returned' is the wordplay.
'finally' indicates one should take the final letters.
'getting' is a charade indicator (letters next to each other).
'first' says to take the initial letters.
'medal' becomes 'gong' (I've seen this before**).
'returned' says the letters should be written in reverse.
The final letter of 'athlete' is 'e'.
The first letter of 'germanys' is 'g'.
'gong' reversed gives 'gnog'.
'e'+'g'+'gnog'='EGGNOG'
'with' is the link.
(Other definitions for eggnog that I've seen before include "spirits in me?" , "Kind of sweet punch" , "Rum-based drink" , "Punch comprising cream and other farm produce" , "Hot alcoholic drink" .)