I am into Kelly's scowls (8)
I believe the answer is:
'scowls' is the definition.
(I've seen this in another clue)
'i am into kelly's' is the wordplay.
'i am' becomes 'i'm'.
'into' means one lot of letters goes inside another.
'kelly' becomes 'graces' (I can't explain this - if you can you should give a lot more credence to this answer).
'im' inserted into 'graces' is 'GRIMACES'.
Can you help me to learn more?
(Other definitions for grimaces that I've seen before include "Makes wry expression", "Contortion of face, perhaps expressing pain", "threatening features", "Facial distortions of distaste", "Twisted expressions".)