Schedule the closure of paint factory (5)
I believe the answer is:
plant
'factory' is the definition.
(a manufacturing plant)
'schedule the closure of paint' is the wordplay.
'schedule' becomes 'plan' (I've seen this in another clue).
'the closure of' indicates one should take the final letters.
The last letter of 'paint' is 't'.
'plan'+'t'='PLANT'
(Other definitions for plant that I've seen before include "Industrial equipment" , "Living organism without locomotion" , "Factory; informer" , "Snooker shot; factory" , "Hide in order to be found" .)