Find; vestige (5)
I believe the answer is:
trace
I believe this is a double definition.
'find' is the first definition.
(I've seen this before)
'vestige' is the second definition.
(synonyms)
(Other definitions for trace that I've seen before include "Follow and find" , "Track; small quantity" , "Element" , "Vestige; manage to find" , "indicator" .)