Speciality marmalade (8)
I believe the answer is:
preserve
I believe this clue is a double definition.
'speciality' is the first definition.
(I've seen this before)
'marmalade' is the second definition.
(I've seen this in another clue)
(Other definitions for preserve that I've seen before include "defend" , "area where game is held" , "Keep from decay in perverse way" , "Maintain, protect from decay" , "Keep safe or in unchanged condition" .)