Scottish offal dish (6)
I believe the answer is:
haggis
'scottish offal dish' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for haggis that I've seen before include "Scotish sheep dish" , "Scottish dish boiled in an animal's stomach" , "Burns's "Great chieftain o' the puddin'-race"" , "Scottish grub" , "Dish boiled in a skin made from an animal's stomach" .)