Something that removes old farm vehicle (9)
I believe the answer is:
extractor
'something that removes' is the definition.
I can't judge whether this defines the answer.
'old farm vehicle' is the wordplay.
'old' becomes 'ex' (prefix meaning former or onetime).
'farm vehicle' becomes 'tractor' (vehicle used on a farm).
'ex'+'tractor'='EXTRACTOR'
Can you help me to learn more?
(Other definitions for extractor that I've seen before include "dentist" , "Variety of fan" , "Remover" , "Device for removing air from a space" , "Kind of fan that sucks out stale air" .)