Crossword Genius

Weapon of Spooner’s ostracised old crone? (7)

Ross

I believe the answer is:

handbag

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

I don't understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for handbag that I've seen before include "Woman's receptacle for carrying personal items" , "'A ---?', famous Lady Bracknell line (Wilde)" , "Woman's accessory" , "Container for carrying money etc" , "Large purse" .)

I've seen this clue in The Times.
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