Am clear out of burnt sugar (7)
I believe the answer is:
caramel
'burnt sugar' is the definition.
(I've seen this before)
'am clear out' is the wordplay.
'out' indicates an anagram (out can mean wrong or inaccurate).
'am'+'clear'='amclear'
'amclear' with letters rearranged gives 'CARAMEL'.
'of' is the link.
(Other definitions for caramel that I've seen before include "Soft toffee" , "Burnt sugar used for flavouring" , "Browned syrup" , "Cooked sugar" , "It's produced by heating sugar until brown" .)