Drunkenly chunter on in club (9)
I believe the answer is:
truncheon
'club' is the definition.
(truncheon is a kind of club)
'drunkenly chunter on' is the wordplay.
'drunkenly' indicates anagramming the letters.
'chunter' anagrammed gives 'trunche'.
'trunche'+'on'='TRUNCHEON'
'in' acts as a link.
(Other definitions for truncheon that I've seen before include "Peelers' baton" , "Police weapon" , "Cosh" , "Policeman's club" , "Policeman's traditional weapon" .)