A long way round a state for itinerant (5)
I believe the answer is:
friar
'itinerant' is the definition.
(itinerant friar is a type of friar)
'a long way round a state' is the wordplay.
'a long way' becomes 'far' (I've seen this before).
'round' indicates putting letters inside.
'a state' becomes 'ri' (Rhode Island abbreviation).
'far' placed around 'ri' is 'FRIAR'.
'for' is the link.
(Other definitions for friar that I've seen before include "Father" , "Religious brother" , "Religious man" , "Eg, a Franciscan" , "..... Tuck was one of Robin Hood's men" .)