Appoint to reorganise Noraid (6)
I believe the answer is:
ordain
'appoint' is the definition.
(thesaurus)
'reorganise noraid' is the wordplay.
'reorganise' indicates anagramming the letters (I've seen this in other clues).
'noraid' anagrammed gives 'ORDAIN'.
'to' is the link.
(Other definitions for ordain that I've seen before include "Install as priest" , "Destine" , "Establish" , "Either prescribe" , "Make someone a clergyman" .)