Factory worker ready to supply remote control device (7)
I believe the answer is:
handset
'remote control device' is the definition.
(handheld remote controller)
'factory worker ready to' is the wordplay.
'factory worker' becomes 'hand' (I've seen this in other clues).
'ready to' becomes 'set' (synonyms).
'hand'+'set'='HANDSET'
'supply' is the link.
(Other definitions for handset that I've seen before include "controller" , "Part of a telephone" , "Phone receiver" , "Shed tan (anag.)" , "part of phone" .)