The most common and most likely answer to this crossword clue is the 3 plus 5 letter word POT ROAST
I've seen this crossword clue in The Daily Telegraph
P
O
T
R
O
A
S
T
More clues leading to the result POT ROAST
- Spooner’s rubbish job making Sunday lunch?
- Poor Root, a prisoner of history, stewing for hours on 10
- Meat dish in earthenware vessel on top of range, by oven
- Meat dish from a top store, not quite fresh
- Cook using unusual root in days gone by
- Root about in antiquity for a dish
- Exotic root included in previous times in dish
- Exotic root in a lot of Italian food supplying dish
- Get a bit upset in job producing hot food
- Pastor to cook Sunday lunch perhaps?
Buddy explains!

The straight part
We know that "dish" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case dish = pot roast.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.