Is America infiltrating Chinese dynasty and doing bad stuff? (8)

I believe the answer is:

misusing

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'doing bad stuff?' is the definition.
I can't tell whether this defines the answer.

'is america infiltrating chinese dynasty' is the wordplay.
'america' becomes 'US' (United States).
'infiltrating' is an insertion indicator.
'chinese dynasty' becomes 'ming' (historical Chinese dynasty).
'is'+'us'='isus'
'isus' inserted inside 'ming' is 'MISUSING'.

'and' is the link.

Can you help me to learn more?

(Other definitions for misusing that I've seen before include "Perverting, misapplying" , "Maltreating" .)

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

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