Since RBI ordered cut (8)
I believe the answer is:
inscribe
'cut' is the definition.
(thesaurus)
'since rbi ordered' is the wordplay.
'ordered' is an anagram indicator.
'since'+'rbi'='sincerbi'
'sincerbi' anagrammed gives 'INSCRIBE'.
(Other definitions for inscribe that I've seen before include "Engrave; dedicate" , "Draw (a figure) within another" , "Write upon, formally perhaps" , "Put dedication into" , "Write or cut words into a surface" .)