The most common and most likely answer to this crossword clue is the 4 letter word SILO
I've seen this crossword clue in The Daily Telegraph
S
I
L
O
More clues leading to the result SILO
- Grain store is put up on empty lido
- Food store set up in metropolis
- Chamber is consequently filled by island lake
- Grain store, Italian? Yes, see!
- Paints switching ends in storage facility
- Stock food store
- Oils processed in large farm container
- Radio listener picked up missile launch site
- Storage chamber, likewise, enthralling the Italian
- Volatile oils in storage chamber
Buddy explains!

The straight part
We know that "Storage chamber" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case storage chamber = silo.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does SILO mean?
SILO noun- A vertical building, usually cylindrical, used for the production of silage.
- From the shape, a building used for the storage of grain.
- An underground bunker used to hold missiles which may be launched.
- An organizational unit that has poor interaction with other units, negatively affecting overall performance.
- (informatics) A structure in the information system that is poorly networked with other structures, with data exchange hampered.
- A self-enclosed group of like-minded individuals.
- To store in a silo.