Insurance assessor (7)
I believe the answer is:
actuary
'insurance assessor' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for actuary that I've seen before include "Insurance agent" , "Statistical expert who advises insurance companies on risk" , "Specialist who calculates probabilities for insurance companies" , "Expert in statistics who calculates insurance probabilities" , "Assessor of insurance risks" .)