The most common and most likely answer to this crossword clue is the 7 letter word TIMBALE
I've seen this crossword clue in The Guardian
T
I
M
B
A
L
E
More clues leading to the result TIMBALE
Buddy explains!
The straight part
We know that "dish in a mould" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case dish in a mould = timbale.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.
What does TIMBALE mean?
TIMBALE noun- A drum-shaped mould used to cook food.
- An individual serving of food so cooked.