Place nothing in drink (5)
I believe the answer is:
point
'place' is the definition.
(thesaurus)
'nothing in drink' is the wordplay.
'nothing' becomes 'pot' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'drink' is an insertion indicator.
'pot' enclosing 'in' is 'POINT'.
Can you help me to learn more?
(Other definitions for point that I've seen before include "Spot" , "Dot; fielding position" , "Aim, full stop" , "Repair brickwork" , "Knife tip" .)