The whole matter involves a female explosion (7)

I believe the answer is:

shebang

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'the whole matter involves a' is the definition.
I can't tell whether this definition defines the answer.

'female explosion' is the wordplay.
'female' becomes 'she' ('she' refers to a woman).
'explosion' becomes 'bang' (I've seen this in another clue).
'she'+'bang'='SHEBANG'

Can you help me to learn more?

(Other definitions for shebang that I've seen before include "affair in America" , "Whole affair" , "circumstances" , "business" , "The whole ___ (entirely)" .)

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

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