Ban international credit transfers (9)
I believe the answer is:
interdict
'ban' is the definition.
(I know that interdict is a type of ban)
'international credit transfers' is the wordplay.
'international' becomes 'int' (abbreviation for international).
'transfers' is an anagram indicator (I've seen 'transferring' mean this).
'credit' is an anagram of 'erdict'.
'int'+'erdict'='INTERDICT'
(Other definitions for interdict that I've seen before include "Prohibit, forbid" , "Credit tin (anag) - ecclesiastical sanction" , "Court order" , "An authoritative prohibition, maybe by church" , "Prohibit - tin credit (anag)" .)