The most common and most likely answer to this crossword clue is the 5 letter word SALLY
I've seen this crossword clue in Financial Times
S
A
L
L
Y
Buddy explains!

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 SALLY mean?
SALLY noun- A willow
- Any tree that looks like a willow
- An object made from the above trees' wood
- A sortie of troops from a besieged place against an enemy.
- A sudden rushing forth.
- A witty statement or quip, usually at the expense of one's interlocutor.
- An excursion or side trip.
- A tufted woollen part of a bellrope, used to provide grip when ringing a bell.
- To make a sudden attack (e.g. on an enemy from a defended position).
- To set out on an excursion; venture; depart (often followed by "forth.")
- To venture off the beaten path.
- A member of the Salvation Army.
- A kind of stonefly.
- A wren.