Spiritual seeker uses my wand no end (6)
I believe the answer is:
mystic
'spiritual seeker' is the definition.
'my wand no end' is the wordplay.
'wand' becomes 'stick'.
'no end' means to remove the last letter.
'stick' with its last letter taken away is 'stic'.
'my'+'stic'='MYSTIC'
'uses' is the link.
(Other definitions for mystic that I've seen before include "Of spiritual significance" , "Allegorical; sacredly obscure" , "Believer in truths beyond tangible proof" , "Otherworldly" , "Spiritualist" .)