The most common and most likely answer to this crossword clue is the 4 plus 6 letter word PUFF PASTRY
I've seen this crossword clue in The Daily Telegraph
P
U
F
F
P
A
S
T
R
Y
More clues leading to the result PUFF PASTRY
- Wheezily make it over the line, having snacked in this case?
- Secretaries go after publicity that’s flaky
- Plug by old railway for baked item
- Ad on old railway that could help generate turnover
- Advert over railway for something to eat
- A crust for father’s endeavour following promotion?
- Praise for former railway pie casing
- Papa has fry-ups cooked with fat and a crust of this
- Praise the old man’s attempt to make sausage rolls ingredient?
Buddy explains!

The straight part
We know that "something to eat" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case something to eat = puff pastry.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 PUFF PASTRY mean?
PUFF PASTRY noun- A light, flaky pastry that is made of alternating buttery and floury dough layers by repeatedly folding the rolled pastry into many layers.