Social crawlers (4)

I believe the answer is:

ants

'social crawlers' is the definition.
(I've seen this in another clue)

This is the entire clue.

(Other definitions for ants that I've seen before include "workers found returning" , "Busy little insects" , "Soldiers" , "Inhabitants of a formicary" , "They live in a formicary" .)

I've seen this clue in the Evening Standard and The Irish News.

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