Explosive storage for a make-up journal (6,8)

I believe the answer is:

powder magazine

I'm a little stuck... Click here to teach me more about this clue!

'a make-up journal' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Maybe they are linked in a way I don't understand?

'explosive storage' is the wordplay.
'explosive' becomes 'powder' (powder is a kind of explosive).
'storage' becomes 'magazine' (magazine is a kind of storage).
'powder'+'magazine'='POWDER-MAGAZINE'

'for' acts as a link.

Can you help me to learn more?

I've seen this clue in the Sydney Morning Herald.

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