The most common and most likely answer to this crossword clue is the 8 letter word OPEN-AIR
I've seen this crossword clue in Independent
O
P
E
N
-
A
I
R
More clues leading to the result OPEN-AIR
- Outside broadcast led by Frank
- Start song outside
- Old couple pierced by English November out of doors
- Outside broadcast follows golf tournament
- Outdoor work, starting to expect teeming rain
- Like a summer event: begin with song
- Start broadcast outside
- Love writer to broadcast outside
- Outdoor writer bursting into love song
- Plea to write song for a kind of concert
Buddy explains!

The straight part
We know that "outside" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case outside = open-air.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 OPEN-AIR mean?
OPEN-AIR adjective- Taking place outdoors; alfresco