We sat around in glow (5)
I believe the answer is:
sweat
'glow' is the definition.
(thesaurus)
'we sat around' is the wordplay.
'around' is an insertion indicator.
'we' going into 'sat' is 'SWEAT'.
'in' is the link.
(Other definitions for sweat that I've seen before include "Soldier" , "It's hard work" , "Toil" , "Salty fluid secreted by the body" , "Male perspiration?" .)