Canter off in daze (6)
I believe the answer is:
trance
'daze' is the definition.
(I've seen this before)
'canter off' is the wordplay.
'off' indicates an anagram.
'canter' with letters rearranged gives 'TRANCE'.
'in' acts as a link.
(Other definitions for trance that I've seen before include "Daze" , "Mesmerised state" , "Stupor - coma" , "Dream state" , "Nectar (anag)" .)