One who deserves what he gets (6)
I believe the answer is:
earner
'one who deserves' is the definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.
'he gets' is the wordplay.
I cannot quite see how this works, but
'he' could be 'arne' and 'arne' is found within the answer.
The remaining letters 'er' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
'what' is the link.
Can you help me to learn more?
(Other definitions for earner that I've seen before include "Something bringing in money" , "Profitable undertaking" , "Something generating a good profit" , "One in employment" , "One paid for work" .)