The most common and most likely answer to this crossword clue is the 4 letter word SOLI
I've seen this crossword clue in Independent
S
O
L
I
More clues leading to the result SOLI
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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 SOLI mean?
SOLI noun- A piece of music for one performer.
- A job or performance done by one person alone.
- (games) A card game similar to whist in which each player plays against the others in turn without a partner
- A single shot of espresso.
- An instance of soloing the football.