Bill, a noble fellow abroad from what we hear (7)
I believe the answer is:
account
'bill' is the definition.
(synonyms)
'a noble fellow abroad from what we hear' is the wordplay.
'noble fellow abroad' becomes 'count' (count is an aristocratic title in some countries).
'from what we hear' shows a homophone (sound like).
'count' sounds like 'ccount'.
'a'+'ccount'='ACCOUNT'
(Other definitions for account that I've seen before include "Record of an event" , "credit arrangement" , "Story; bank service" , "Invoice - story" , "Bill - relation" .)