Supply again includes assorted parts for rockets (7)

I believe the answer is:

restock

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'supply again' is the definition.
('stock' is an answer for 'supply' so perhaps 'restock' is OK for 'supply again')

'assorted parts for rockets' is the wordplay.
'rockets' can be anagrammed to 'RESTOCK'.
However, I'm not clear how this is indicated.

'includes' is the link.

Can you help me to learn more?

I've seen this clue in The Guardian.

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