Crossword Genius

Buy a holding (8)

Ross

I believe the answer is:

purchase

I'm a little stuck... Click here to teach me more about this clue!

This could be a double definition.

'buy' is the first definition.
(I know that buy can be written as purchase)

'a holding' is the second definition.
The answer and definition can be both acts as well as being singular nouns.
Maybe you can see an association between them that I can't see?

Can you help me to learn more?

(Other definitions for purchase that I've seen before include "Firm grip" , "Buy something" , "Pay money" , "secure an advantage" , "firm grasp" .)

I've seen this clue in The Globe and Mail.
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