Quick beer, right? (5)
I believe the answer is:
alert
'quick' is the definition.
(thesaurus)
'beer right?' is the wordplay.
'beer' becomes 'ale' (I've seen this before).
'right?' becomes 'rt'.
'ale'+'rt'='ALERT'
(Other definitions for alert that I've seen before include "Watchful, sharp" , "alarm" , "In state of watchfulness" , "Lively" , "Watchful and bright" .)