What transmits French refusal about Europe (6)
I believe the answer is:
neuron
'europe' is the definition.
Although both the answer and definition are singular nouns, I cannot see how one could define the other.
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for neuron that I've seen before include "Cell that conducts nerve impulses" , "Conductor" , "Part of one's nervous system" , "that makes for nervous transmission" , "Nerve impulse cell" .)