Communist twin turning tail (6)

I believe the answer is:

castro

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'communist twin turning tail' is the definition.
The definition suggests a singular noun which matches the answer.

This is all the clue.

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(Other definitions for castro that I've seen before include "revolutionary leader" , "Fidel -, former Cuban leader" , "Latin American dictator" , "Fidel ......, Cuban chief" , "Cuban leader, d. 2016" .)

I've seen this clue in The Independent.

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