Some sugar used for punishment? (4)
I believe the answer is:
cane
I believe this is a double definition.
'some sugar' is the first definition.
(cane sugar is a kind of sugar)
'punishment?' is the second definition.
(I've seen this before)
'used for' is the link.
(Other definitions for cane that I've seen before include "African country formerly called Gold Coast" , "A stick to lean on" , "Beat - bamboo - stick" , "Strong stem for to allow a plant to climb" , "Eg, rattan" .)