Thick sweet substance (7)
(Other definitions for treacle that I've seen before include "Saplike stuff" , "Electra (anag)" , "Sweet, black viscous substance" , "flattery" , "Sweet, sticky stuff" .)
(Other definitions for honey that I've seen before include "Produce of bees" , "Sweet term of endearment" , "Love" , "Darling; hive product" , "Beloved" .)