Adroitly converted to hero worship (8)
I believe the answer is:
idolatry
'hero worship' is the definition.
(worshipping an idol)
'adroitly converted' is the wordplay.
'converted' is an anagram indicator.
'adroitly' with letters rearranged gives 'IDOLATRY'.
'to' is the link.
(Other definitions for idolatry that I've seen before include "Worship of godly images" , "Excessive devotion" , "Graven image worship" , "bowing down before a goddess?" , "Adroitly (anag.)" .)