Girl missing in action hiding currency (7)

I believe the answer is:

miranda

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'girl' is the definition.

'missing in action hiding currency' is the wordplay.
'missing in action' becomes 'mia' (this could be a standard abbreviation of which I'm unaware).
'hiding' indicates putting letters inside.
'currency' becomes 'rand' (I've seen this before).
'mia' placed around 'rand' is 'MIRANDA'.

Can you help me to learn more?

(Other definitions for miranda that I've seen before include "Innocent heroine" , "Female comedian" , "4 [TEMPEST] character" , "Female in The Tempest" , "Prospero's daughter (Tempest)" .)

I've seen this clue in The Times.

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