The most common and most likely answer to this crossword clue is the 10 letter word STOREHOUSE
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More clues leading to the result STOREHOUSE
Buddy explains!

The straight part
We know that "Another part of the supply chain" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case another part of the supply chain = storehouse.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 STOREHOUSE mean?
STOREHOUSE noun- A building for keeping goods of any kind, especially provisions
- (by extension) A single location or resource where a large quantity of something can be found.
- A mass or quantity laid up.
- To lay up in store.