A manufacturer no longer (6)
I believe the answer is:
former
'a manufacturer no' is the definition.
Both the answer and definition are adjectives. Perhaps there's an association between them I don't understand?
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for former that I've seen before include "Core for winding an electrical core" , "Previous" , "Of an earlier time" , "Old < prior < departed" , "The first mention of the two" .)