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 before).
'the closure of' suggests the final letters.
The final 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" .)