Led Zeppelin singer in factory (5)
I believe the answer is:
plant
'factory' is the definition.
(a manufacturing plant)
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for plant that I've seen before include "Machinery; snooker shot" , "Growing organism - industrial buildings" , "Factory - bit of vegetation" , "Set; factory" , "Vegetable organism" .)