Payment to central government fund went on courses for the auditor? (4,3)
I believe the answer is:
road tax
'payment to central government fund' is the definition.
I don't know anything about this answer so I can't judge whether this works.
'went on courses for the auditor?' is the wordplay.
'went on' becomes 'road' (I can't justify this - if you can you should give a lot more credence to this answer).
'courses' becomes 'tacks' (I've seen this in another clue).
'for the auditor?' shows a homophone (sound like) (I've seen 'for the auditor' mean this).
'tacks' sounds like 'tax'.
'road'+'tax'='ROAD TAX'
Can you help me to learn more?
(Other definitions for road tax that I've seen before include "Levy on cars etc" , "What drivers pay" , "Fee to run vehicle" , "Levy on vehicles using public thoroughfares" , "Vehicle excise duty" .)