Free case dropped off by wine shop (6)
I believe the answer is:
report
'shop' is the definition.
(I've seen this before)
'free case dropped off by wine' is the wordplay.
'free' becomes 're-lease' (to release someone is to free them).
'case' says to hollow out the word (remove centre letters).
'dropped off by wine' becomes 'port' (I can't explain this - if you can you should believe this answer much more).
'release' with its middle removed is 're'.
're'+'port'='REPORT'
Can you help me to learn more?
(Other definitions for report that I've seen before include "Journalist's account - explosive noise" , "Account; loud noise" , "Explosion" , "Complain about - account" , "Announce; gunshot" .)