Mix socially (9)

I think it could be either:

Which length description are you looking for?:

hobnob

'mix socially' is the definition.
(I've seen this before)

This is the entire clue.

(Other definitions for hobnob that I've seen before include "Associate on familiar terms" , "Associate familiarly" , "make light conversation" , "Hang out with people of standing" , "Spend time together, socialise" .)

I've seen this clue in The Times and The Sun.

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