Made a searching examination by all accounts (7)
I believe the answer is:
audited
'made a searching' is the definition.
I can't judge whether this definition defines the answer.
'examination by all accounts' is the wordplay.
'examination' becomes 'audit' (I've seen this before).
'by all accounts' becomes 'ed' (I am not sure about this - if you are sure you should believe this answer much more).
'audit'+'ed'='AUDITED'
Can you help me to learn more?
(Other definitions for audited that I've seen before include "officially checked" , "Checked books" , "Checked (someone's accounts)" , "not cooked?" , "Examined (accounts)" .)