The most common and most likely answer to this crossword clue is the 5 letter word AVERT
I've seen this crossword clue in The Times
A
V
E
R
T
More clues leading to the result AVERT
- Turn aside to maintain temperature
- Turn away from green area first
- Head off as an animal doctor, crossing river
- Prevent a former soldier keeping rifle, at first
- Head off from state close to Connecticut
- Turn aside right after avenue (5
- Turn away very briefly at stores
- Keep off a green
- Declare time to head off
- Prevent beaver trashing boxes
Buddy explains!

The straight part
We know that "Turn aside" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case turn aside = avert.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 AVERT mean?
AVERT verb- To turn aside or away.
- To ward off, or prevent, the occurrence or effects of.
- To turn away.
- To turn away.