The most common and most likely answer to this crossword clue is the 7 letter word ROASTED
I've seen this crossword clue in The Daily Telegraph
R
O
A
S
T
E
D
More clues leading to the result ROASTED
- Criticised way in which setter is included only every now and then
- Did cook in oven: raw on the outside
- Cooked in oven with wine marinade?
- Steak, for the most part, way over cooked
- Getting stick about high teas, having dressed down
- Criticised good person close to me in a way
- Slated sort of building, dry inside, with colourful exterior
- Baked a Dorset recipe
- Criticised how the meat was cooked?
- Like salad? No — it’s criticised
Buddy explains!

The straight part
We know that "Slated" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case slated = roasted.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 ROASTED mean?
ROASTED verb- To cook food by heating in an oven or over a fire without covering, resulting in a crisp, possibly even slightly charred appearance.
- To cook by surrounding with hot embers, ashes, sand, etc.
- To process by drying through exposure to sun or artificial heat
- To heat to excess; to heat violently; to burn.
- To admonish someone vigorously
- To subject to bantering, severely criticize, sometimes as a comedy routine.
- To dissipate by heat the volatile parts of, as ores.
- Cooked by roasting.