Drunken bout regularly superseded (5)
I believe the answer is:
spree
'drunken bout' is the definition.
(I've seen this before)
'regularly superseded' is the wordplay.
'regularly' indicates alternate letters (regularly take one letter, leave next etc.).
The alternating letters of 'superseded' are 'SPREE'.
(Other definitions for spree that I've seen before include "High old time" , "night on the razzle?" , "Drunken bout" , "Drinking bout" , "Fling - Berlin's river" .)