Partaking of, being forced to (6)

I believe the answer is:

having

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'partaking' is the definition.
The answer and definition can be both to do with ownership as well as being present participle verbs.
Maybe they are linked in a way I don't understand?

I don't understand the rest of the clue.

Can you help me to learn more?

(Another definition for having that I've seen is " Possessing, owning".)

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