Give Knight money to report on a harness racer (5)
I believe the answer is:
pacer
'a harness racer' is the definition.
(I've seen this in another clue)
'give knight money to report' is the wordplay.
I cannot really understand how this works, but
'money' could be 'p' and 'p' is located in the answer.
The remaining letters 'acer' 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).
'on' acts as a link.
Can you help me to learn more?
(Other definitions for pacer that I've seen before include "Competitor" , "Racehorse" , "Horse; one setting speed" , "One who sets the running speed; horse" , "setting the rate" .)