The most common and most likely answer to this crossword clue is the 3 plus 4 letter word TEA ROOM
I've seen this crossword clue in The Guardian
T
E
A
R
O
O
M
More clues leading to the result TEA ROOM
- Fly circles minute eatery
- Cafe has very quickly run low after setback
- Where crumpet might be on offer, put up low rent first
- Male fed a bit of corn oil primarily, where cakes available?
- … moving to a more appropriate location for food later
- Genteel setting where Aussie boxer punches fellow combatants
- Small restaurant’s rent — low, in retrospect
- Aussie native infiltrating company, genteel English establishment?
Buddy explains!

The straight part
We know that "where cakes available" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case where cakes available = tea room.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.