Sugary contents turned into meat sauce (4)
I believe the answer is:
ragu
'meat sauce' is the definition.
'ragu' can be an answer for 'sauce' (Italian cooking sauce). I am not certain of the 'meat' bit.
'sugary contents turned' is the wordplay.
'contents' indicates the answer is hidden within the clue (I've seen 'content of' mean this).
'turned' is a reversal indicator.
'ugar' can be found hidden inside 'sugary'.
'ugar' back-to-front is 'RAGU'.
'into' is the link.
Can you help me to learn more?
(Other definitions for ragu that I've seen before include "pasta sauce" , "tomato and meat sauce" .)