Go over relic (5)
I believe the answer is:
trace
This clue is a double definition.
'go over' is the first definition.
(I've seen this in another clue)
'relic' is the second definition.
(thesaurus)
(Other definitions for trace that I've seen before include "Seek out" , "Cater (anag.)" , "Pinch" , "Follow to source" , "Element" .)