Go in search of some chance of success (8)
I believe the answer is:
prospect
I believe this clue is a triple definition!
'go' is the first definition.
(thesaurus)
'in' acts as a link.
'search' is the second definition.
(prospecting is a kind of searching)
'of' is a link.
'some chance of success' is the third definition.
(I've seen this before)
(Other definitions for prospect that I've seen before include "'Outlook, vista (8)'" , "Survey the outlook" , "Outlook or panorama" , "Outlook, visa" , "Outlook for corps pet" .)