The most common and most likely answer to this crossword clue is the 5 letter word EVERT
I've seen this crossword clue in The Guardian
E
V
E
R
T
More clues leading to the result EVERT
- Turn out English and European ecologist
- Green on back of course to turn outwards
- Always No. 1 in tennis? No, but she did win Wimbledon!
- Turn out, on being missed by team
- Football team, not cricket side, turn out
- Primary schoolmates can get a bit annoyed with clots
- Old tennis champion is upset
- Turn out for one respected for her services?
- Court attendant once making rude sign in box, perhaps rejected
- Former tennis star, always on time for starters
Buddy explains!

The straight part
We know that "turn outwards" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case turn outwards = evert.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 EVERT mean?
EVERT verb- To turn inside out (like a pocket being emptied) or outwards.
- To move (someone or something) out of the way.
- To turn upside down; to overturn.
- To disrupt; to overthrow.