The most common and most likely answer to this crossword clue is the 6 letter word TURBOT
T
U
R
B
O
T
More clues leading to the result TURBOT
- Starts to talk up river — bags of tasty fish!
- Coming back to dry fish
- Swimmer starts to train using rural baths outside town
- Fish — variety of trout — nibbling bait at first
- Opera with debut for baritone as replacement for and alternative to bass?
- High-powered tourer starts for swimmer
- Powerfully driven tail of pilot fish
- Fish, unusual British trout?
- High-powered tourer starts
- Supercharged time for swimmer
Buddy explains!

The straight part
We know that "fish" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case fish = turbot.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 TURBOT mean?
TURBOT noun- A species of flatfish native to Europe (Scophthalmus maximus, earlier Psetta maxima).
- Any of various other flatfishes of family Scophthalmidae that are found in marine or brackish waters.
- Triggerfish, Canthidermis sufflamen.