Crossword Genius

Control freak to switch staff around every now and then (7)

Ross

I believe the answer is:

fascist

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'control' is the definition.
The answer and definition can be both people as well as being singular nouns.
Perhaps you can see an association between them that I can't see?

I cannot understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for fascist that I've seen before include "on the right wing" , "Right-wing authoritarian" , "Right-wing extremist" , "Authoritarian right-winger" , "Extreme right-winger" .)

I've seen this clue in The Hindu.
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