Some original equipment (3)
I believe the answer is:
rig
'equipment' is the definition.
(rig is a kind of equipment)
'some original' is the wordplay.
'some' indicates a hidden word (some of the parts of the word are used).
'RIG' is hidden in the letters of 'original'.
(Other definitions for rig that I've seen before include "Apparatus; (boat's) sails" , "Fix; equip" , "Put sails on" , "Large American lorry" , "Manipulate (result)" .)