Non-drinking freight may go here (2,3,5)
I believe the answer is:
on the wagon
'non-drinking freight' is the definition.
I know nothing about this answer so I can't judge whether this works.
'go here' is the wordplay.
I cannot quite understand how this works, but
'go' is within the answer.
This may be the basis of the clue (or it may be nonsense).
'may' is the link.
Can you help me to learn more?
(Other definitions for on the wagon that I've seen before include "Abstaining from alcohol" , "Off booze" , "Not drinking" , "Teetotal" , "Not taking alcohol" .)