Sticky sweet made aunt go mad (6)
I believe the answer is:
nougat
'sticky sweet' is the definition.
(I've seen this before)
'aunt go mad' is the wordplay.
'mad' indicates anagramming the letters.
'aunt'+'go'='auntgo'
'auntgo' is an anagram of 'NOUGAT'.
'made' is the link.
(Other definitions for nougat that I've seen before include "Sticky French sweet" , "Chewy nutty sweet" , "'Chewy sweet with nuts, cherries (6)'" , "Oat gun for a sweet" , "Hard, chewy sweet" .)