Almond paste (7)
(Other definitions for praline that I've seen before include "nutty dessert" , "Sugared almond" , "Plainer (anag.)" , "Substance made of nuts boiled in sugar, used to fill chocolates" , "Chocolate filling of nuts and sugar" .)
'almond paste' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for marzipan that I've seen before include "Cake topping" , "Paste on cake" , "coat often iced over?" , "sort of sweet" , "Marchpane" .)