Alliance, league (11)

I believe the answer is:

confederacy

I believe this is a double definition.

'alliance' is the first definition.
(I've seen this before)

'league' is the second definition.
(thesaurus)

(Other definitions for confederacy that I've seen before include "Group of conspirators" , "League of states - the South in US Civil War" , "coalition" , "League or alliance of states" .)

I've seen this clue in The Times.

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