Having half a mind service has been cut, he won't pay (5)
I believe the answer is:
miser
'having half a mind service has been cut he won't pay' is the definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.
This is the entire clue.
Can you help me to learn more?
(Other definitions for miser that I've seen before include "Mean person" , "Avaricious hoarder" , "One doesn't spend much" , "Niggardly person" , "Stingy person like Scrooge" .)