The most common and most likely answer to this crossword clue is the 7 letter word GOBBLER
I've seen this crossword clue in The Times
G
O
B
B
L
E
R
More clues leading to the result GOBBLER
Buddy explains!
The straight part
We know that "Turkey" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case turkey = gobbler.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 GOBBLER mean?
GOBBLER noun- A turkey.
- One who eats food very quickly, without decorum.