Lie about dad stealing one's sweet (8)
I believe the answer is:
lollipop
'sweet' is the definition.
(lollipop is a kind of sweet)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for lollipop that I've seen before include "Woman seeing children safely across the road" , "Sweet for suckers?" , "Ice confection" , "Confection on a stick" , "Sweetmeat" .)