Abuse one intends to pay for (3-5)
I believe the answer is:
ill-treat
'abuse' is the definition.
(I know that abuse can be written as ill-treat)
'one intends to pay for' is the wordplay.
'one intends' becomes 'ill' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'to pay for' becomes 'treat' (I've seen this before).
'ill'+'treat'='ILL-TREAT'
Can you help me to learn more?
(Other definitions for ill-treat that I've seen before include "Act cruelly towards (someone)" , "Abuse" , "Subject to cruel or abusive usage" , "Misuse" , "Use someone badly or cruelly" .)