The most common and most likely answer to this crossword clue is the 12 letter word PORTERHOUSES
I've seen this crossword clue in The Daily Telegraph
P
O
R
T
E
R
H
O
U
S
E
S
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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 PORTERHOUSES mean?
PORTERHOUSES noun- A public house where porter was sold; often also served steaks, chops etc.
- A cut of beef taken from the thick end of the short loin; it has a T-shaped bone and a large piece of tenderloin; a porterhouse steak.