Store with drink to sell (6)
I believe the answer is:
supply
'sell' is the definition.
(thesaurus)
'store with drink' is the wordplay.
'store' becomes 'ply' (I can't justify this - if you can you should believe this answer much more).
'with' is a charade indicator (letters next to each other).
'drink' becomes 'sup' (to sup is to drink).
'ply' after 'sup' is 'SUPPLY'.
'to' acts as a link.
Can you help me to learn more?
(Other definitions for supply that I've seen before include "Provide or furnish with" , "Lay on" , "in a compliant manner" , "store" , "with considerable flexibility" .)