Bureaucrats claim food if unrestrained (11)
I believe the answer is:
officialdom
'bureaucrats' is the definition.
'claim food if unrestrained' is the wordplay.
'unrestrained' indicates an anagram.
'claim'+'food'+'if'='claimfoodif'
'claimfoodif' is an anagram of 'OFFICIALDOM'.
(Other definitions for officialdom that I've seen before include "Bureaucracy" , "mandarins" , "Authority" .)