Hypocritical dictator’s evil instrument (6,4)
I believe the answer is:
double bass
This clue could be a double definition.
'hypocritical dictator's evil' is the first definition.
Although both the answer and definition are singular nouns, I don't see how one could define the other.
'instrument' is the second definition.
(double bass is a kind of instrument)
Can you help me to learn more?
(Other definitions for double bass that I've seen before include "... as part of orchestra" , "One taking a bow" , "Musical instrument" , "Low-pitched string instrument" , "Stringed instrument" .)