Conservative ruined NHS timetables (13)
I believe the answer is:
establishment
'conservative' is the definition.
Although both the answer and definition are singular nouns, I can't understand how one could define the other.
'ruined nhs timetables' is the wordplay.
'ruined' indicates an anagram.
'nhs'+'timetables'='nhstimetables'
'nhstimetables' is an anagram of 'ESTABLISHMENT'.
Can you help me to learn more?
(Other definitions for establishment that I've seen before include "being incorporated in this" , "Formation" , "system" , "concern" , "Institutionalized authority" .)