Clear out on time to have a drink (6)
I believe the answer is:
claret
'a drink' is the definition.
(claret is a kind of drink)
'clear out on time' is the wordplay.
'out' indicates an anagram (out can mean wrong or inaccurate).
'on' says to put letters next to each other.
'time' becomes 't'.
'clear' is an anagram of 'clare'.
'clare'+'t'='CLARET'
'to have' is the link.
(Other definitions for claret that I've seen before include "Red wine from southern France" , "Red Bourdeaux wine" , "Irish county starts the wine" , "vessel might contain this?" , "Purplish-red - blood" .)