Team attending pub strip in window (7)
I believe the answer is:
sidebar
'strip in window' is the definition.
(part of a computer window)
'team attending pub' is the wordplay.
'team' becomes 'side' (both can mean a sports team).
'attending' says to put letters next to each other.
'pub' becomes 'bar' (both are drinking establishments).
'side'+'bar'='SIDEBAR'
(Other definitions for sidebar that I've seen before include "Explanatory panel" , "South African solicitors" , "Short item throwing light on the main article - braised (anag)" , "Courtroom conference between the lawyers and the judge" .)