Worth found in former itinerary (5)
I believe the answer is:
merit
'worth' is the definition.
(merit is a kind of worth)
'in former itinerary' is the wordplay.
'in' indicates a hidden word.
'MERIT' is hidden within 'former itinerary'.
'found' is the link.
(Other definitions for merit that I've seen before include "Quality deserving reward" , "Deserve, be worthy of" , "Deserve or warrant" , "Advantage" , "Rate" .)