I told you, the cuts hurt (2,5)
I believe the answer is:
so there
'i told' is the definition.
I know nothing about this answer so I can't tell whether this works.
'the cuts hurt' is the wordplay.
'cuts' is an insertion indicator (some letters cut their way into other letters).
'hurt' becomes 'sore' (I've seen this in another clue).
'the' put within 'sore' is 'SO THERE'.
'you' is the link.
Can you help me to learn more?
(Other definitions for so there that I've seen before include "What are you going to do about that" , "message of defiance" , "Expression of defiance" , "Defiant words" , "Derisive expression" .)