Next movement around Rhode Island so outward (9)
I believe the answer is:
extrinsic
'outward' is the definition.
(thesaurus)
'next movement around rhode island so' is the wordplay.
'movement' is an anagram indicator (letters move around).
'around' indicates putting letters inside.
'rhode island' becomes 'ri' (US postal abbreviation).
'so' becomes 'sic' ('so' in Latin).
'next' anagrammed gives 'extn'.
'extn' placed around 'ri' is 'extrin'.
'extrin'+'sic'='EXTRINSIC'
(Other definitions for extrinsic that I've seen before include "Not essential or inherent" , "What's inessential" , "Foreign" .)