Order another sherry: brandy overpriced initially (4)
I believe the answer is:
asbo
'order' is the definition.
(I've seen this before)
'another sherry brandy overpriced initially' is the wordplay.
'initially' says to take the initial letters.
The initial letters of 'another sherry brandy overpriced' is 'ASBO'.
(Other definitions for asbo that I've seen before include "Restrictive order" , "Order made for bad behaviour" , "troublemaker's punishment" , "Court order against unruly behaviour" , "Sanction for bad behaviour (init.)" .)