Employ Sue in a new organisation (3)
I believe the answer is:
use
'employ' is the definition.
(synonyms)
'sue in a new organisation' is the wordplay.
'sue' anagrams to 'USE'.
Though, I'm unsure how this is indicated.
Can you help me to learn more?
(Other definitions for use that I've seen before include "particular church liturgy" , "Employ (something)" , "Employ - advantage" , "Employ or exploit" , "consume; exploit" .)