Demanded medical reforms (7)
I believe the answer is:
claimed
'demanded' is the definition.
(claiming is a kind of demanding)
'medical reforms' is the wordplay.
'reforms' indicates an anagram.
'medical' anagrammed gives 'CLAIMED'.
(Other definitions for claimed that I've seen before include "Asserted right to or interest in" , "Declared" , "Called for" , "Alleged" , "Asserted, contended" .)