Relating to non-democratic rule, I coach girl to rebel (10)
I believe the answer is:
oligarchic
'relating to non-democratic rule' is the definition.
I can't judge whether this defines the answer.
'i coach girl to rebel' is the wordplay.
'to rebel' indicates an anagram.
'i'+'coach'+'girl'='icoachgirl'
'icoachgirl' with letters rearranged gives 'OLIGARCHIC'.
Can you help me to learn more?
(Other definitions for oligarchic that I've seen before include "Relating to rule by a few" , "sort of government" .)