Approval in place before statement of account (7)
I believe the answer is:
plaudit
'approval' is the definition.
(plaudit is a kind of approval)
'place before statement of account' is the wordplay.
'place' becomes 'pl' (abbreviation used in postal addresses).
'before' means one lot of letters go next to another.
'statement of account' becomes 'audit' (I can't explain this - if you can you should believe this answer much more).
'pl'+'audit'='PLAUDIT'
'in' acts as a link.
Can you help me to learn more?
(Other definitions for plaudit that I've seen before include "Acclaim" , "Praise, accolade" , "Praise bestowed" , "Enthusiastic approval" , "Cheer" .)