Took much alcohol up in storeroom (5)
I believe the answer is:
depot
'storeroom' is the definition.
(I've seen this before)
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for depot that I've seen before include "Store for large quantities" , "Storehouse, repository" , "bus terminus" , "Terminus for transport vehicles" , "Headquarters - storehouse" .)