Revolutionary film about boron (5)
I believe the answer is:
rebel
This clue might be a double definition.
'revolutionary' is the first definition.
(I know that rebel is a type of revolutionary)
'film about boron' is the second definition.
Although both the answer and definition are singular nouns, I don't understand how they can define each other.
Can you help me to learn more?
(Other definitions for rebel that I've seen before include "Mutineer, one who defies authority" , "Rise up against authority" , "One rising in opposition" , "Revolt, mutiny" , "One who's risen in opposition" .)