Serving minister's investment cornering naval hardware produces rebellion (15)

I believe the answer is:

insubordination

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'rebellion' is the definition.
(thesaurus)

'serving minister's investment' is the wordplay.
'serving minister' becomes 'insub' (I can't explain this - if you can you should give a lot more credence to this answer).
'investment' becomes 'ordination' (I've seen this before).
'insub'+'ordination'='INSUBORDINATION'

'cornering naval hardware produces' is the link.
This may not be correct. Some or all of it may belong to another bit of the clue.

Can you help me to learn more?

(Other definitions for insubordination that I've seen before include "Mutiny" , "Defiance" .)

I've seen this clue in The Times.

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