Keeps The Suits in check within earshot of the leadership (6)
I believe the answer is:
closet
'leadership' is the definition.
Although both the answer and definition are singular nouns, I can't understand how they can define each other.
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for closet that I've seen before include "Wardrobe in the US" , "Small room or cabinet for storage" , "Study" , "Secret - cupboard" , "Shut away in private conference - in small room?" .)