Awaiting decision with no introduction or conclusion (6)

I believe the answer is:

ending

I'm a little stuck... Click here to teach me more about this clue!

'conclusion' is the definition.
('ending' can be a synonym of 'conclusion')

I don't understand the rest of the clue.

(Other definitions for ending that I've seen before include "Gin den (anag.)" , "Finale" , "Last part" , "Cessation" , "terminal" .)

I've seen this clue in the Irish Times (Crosaire) and the Irish Times.

Want a hint initially instead of a full solution? Install my app