It goes on what's left to pay for public services? (11,3)
I believe the answer is:
inheritance tax
'it goes on what's left to pay for public services?' is the definition.
The definition suggests a singular noun which matches the answer.
This is the entire clue.
Can you help me to learn more?
(Other definitions for inheritance tax that I've seen before include "Levy on dead person's estate" , "Levy on late distribution" .)