The most common and most likely answer to this crossword clue is the 4 plus 5 letter word OPEN HOUSE
I've seen this crossword clue in Independent
O
P
E
N
H
O
U
S
E
More clues leading to the result OPEN HOUSE
- Hospitality for all in old luxury flat as temperature falls
- This party is certainly no closed shop!
- All welcome round at top floor flat, taking time out
- It offers hospitality to all, but it’s cold in winter
- All welcome here, but we have not decided on kind of dance music
- Place of hospitality and love – use phone freely
- Hospitality of public audience
- Hospitality to begin with hotel on river
- Accessible royal dynasty gives unlimited hospitality
- Nothing stopping mobile phone use providing reception for everyone
Buddy explains!
The straight part
We know that "All welcome" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case all welcome = open house.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.