Seize two principal assets of greedy tech company (7)

I believe the answer is:

grapple

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'seize two principal assets' is the definition.
'grapple' can be an answer for 'seize' (grappling is a kind of seizing). I am unsure of the 'two principal assets' bit.

'greedy tech company' is the wordplay.
'greedy' becomes 'gr' (I can't justify this - if you can you should give a lot more credence to this answer).
'tech company' becomes 'apple'.
'gr'+'apple'='GRAPPLE'

'of' acts as a link.

Can you help me to learn more?

(Other definitions for grapple that I've seen before include "Wrestle mentally (with)" , "Engage in close fighting" , "Go to work on" , "Clutch" , "struggle" .)

I've seen this clue in The Telegraph.

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