Band together (9)
'band together' is the definition.
(thesaurus)
This is all the clue.
(Other definitions for affiliate that I've seen before include "Associate with a parent body" , "Become closely connected" , "Attach (to an organisation)" .)
'band together' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for unite that I've seen before include "Join together, become allies" , "Wed?" , "Bring together, become one" , "Come together as allies or comrades" , "Become a single whole" .)