Such a professional as might be called to account? (7)
I believe the answer is:
auditor
'account?' is the definition.
Although both the answer and definition are singular nouns, I don't understand how one could define the other.
'such a professional as might be called to' is the wordplay.
I cannot quite understand how this works, but
'a' is found in the answer.
'to' is present in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for auditor that I've seen before include "Finance officer" , "Accounts inspector" , "Person checking business accounts" , "Person who listens" , "One reviewing books" .)