Crossword Genius

Relatively close? (8)

Ross

I believe the answer is:

clannish

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'relatively close?' is the definition.
Both the definition and answer are adjectives. Perhaps they are linked in a way I don't understand?

This is all the clue.

Can you help me to learn more?

(Other definitions for clannish that I've seen before include "Sticking to one group" , "about family" , "Tending to exclude those outside the group" , "Excluding others outside one's own group" , "Like group sticking together" .)

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