Organisation poured beer regularly (5)
I believe the answer is:
order
'organisation' is the definition.
(order is a kind of organisation)
'poured beer regularly' is the wordplay.
'regularly' means one should take alternating letters (regularly take one letter, leave next etc.).
'poured'+'beer'='pouredbeer'
The alternating letters of 'pouredbeer' are 'ORDER'.
(Other definitions for order that I've seen before include "Call" , "Command, mandate" , "Ruling" , "Decree" , "Right arrangement" .)