Cry wolf in account (8)
I believe the answer is:
entreaty
'cry' is the definition.
(thesaurus)
'wolf in account' is the wordplay.
'wolf' becomes 'eat' (wolf can informally mean to eat or consume).
'in' indicates putting letters inside.
'account' becomes 'entry' (entry can mean an account in a set of records).
'eat' inserted into 'entry' is 'ENTREATY'.
(Other definitions for entreaty that I've seen before include "An earnest or emotional request" , "Earnest plea" , "Appeal" , "Earnest or urgent request" , "suit" .)