Needing comradeship at gathering (6)

I believe the answer is:

social

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'gathering' is the definition.
(social is a kind of gathering)

I don't understand how the remainder of the clue works.

(Other definitions for social that I've seen before include "Sort of security" , "Living in an organised community in Licosa" , "Relating to people living in groups" , "Gregarious; gathering" , "Convivial - party" .)

I've seen this clue in The Mirror.

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