The most common and most likely answer to this crossword clue is the 7 letter word HADDOCK
I've seen this crossword clue in Independent
H
A
D
D
O
C
K
More clues leading to the result HADDOCK
- Fish dad cooked in white wine
- Fish supplement pawned ?
- Captain who’s drawn from harbour by drunk
- Fish received on wharf
- Fish dined on the waterfront
- Fish held and cut
- Fish a theologian smothered in German wine
- Fish supplement found in wine from Germany
- Total invested in white wine and fish
- They may be caught at sea and obtained on wharf
Buddy explains!

The straight part
We know that "Captain who’s drawn" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case captain who’s drawn = haddock.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 HADDOCK mean?
HADDOCK noun- A marine fish, Melanogrammus aeglefinus, of the North Atlantic, important as a food fish.