The most common and most likely answer to this crossword clue is the 6 plus 4 letter word GUINEA FOWL
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More clues leading to the result GUINEA FOWL
Buddy explains!

The straight part
We know that "poultry" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case poultry = guinea fowl.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 GUINEA FOWL mean?
GUINEA FOWL noun- Any of several African birds of the family Numididae (6 species) resembling partridges.