It's offensive being near this joint (7)

I believe the answer is:

knuckle

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'this joint' is the definition.
(joint in the hand)

I don't understand the remainder of the clue.

(Other definitions for knuckle that I've seen before include "Pork joint from the knee downwards" , "Part of the finger" , "Hand joint" , "A finger-joint" , "Bone of the fist" .)

I've seen this clue in The Irish Times.

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