Canter around in a state of abstraction (6)
I believe the answer is:
Here is my best explanation:
'a state of abstraction' is the definition.
(I've seen this before)
'canter around' is the subsidiary indication.
'around' is an anagram indicator.
'canter' with letters rearranged gives 'trance'.
'in' is the link.
(Other definitions for trance that I've seen before include "Sleep-like state perhaps induced by hypnosis", "Canter about a daydream", "state of shock", "Deep sleeplike state", "State of abstraction", "Ecstasy", "Reverie", "A half-conscious state", "Canter into suspended animation" and "Canter (anag.)".)