Examination claimed to be fixed (7)
I believe the answer is:
medical
'examination' is the definition.
(I know that medical is a type of examination)
'claimed to be fixed' is the wordplay.
'to be fixed' indicates an anagram.
'claimed' with letters rearranged gives 'MEDICAL'.
(Other definitions for medical that I've seen before include "Of the healing sciences" , "Of the science dealing with treatment of disease" , "Fitness examination" , "Claimed (anag.)" , "Declaim (anag) -- health check" .)