See forceful thrust with foot results in penalty (4,4)
I believe the answer is:
spot kick
'penalty' is the definition.
(I've seen this before)
'see forceful thrust with foot' is the wordplay.
I cannot really understand how this works, but
'see' could be 'spot' (to spot is to notice or catch sight of) and 'spot' is found in the answer.
The remaining letters 'kick' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
'results in' acts as a link.
Can you help me to learn more?
(Another definition for spot kick that I've seen is " Penalty".)