Go to meet German girl somewhere for a little drink? (4,5)

'a little drink?' is the definition.
Although both the answer and definition are singular nouns, I don't see how one could define the other.

'go to meet german girl somewhere' is the wordplay.
I cannot quite understand how this works, but
'go' could be 'shot' (I've seen this before) and 'shot' is present in the answer.
'german' could be 'g' (abbreviation) and 'g' is found in the answer.
'girl' could be 'lass' (lass can informally mean a girl) and 'lass' is present in the answer.
This accounts for all the letters.
This may be the basis of the clue (or it may be nonsense).

'for' is the link.

Can you help me to learn more?