The most common and most likely answer to this crossword clue is the 1 letter word W
I've seen this crossword clue in The Times
W
More clues leading to the result W
- Early Liberal government in that year, governing in extremis with a king
- E [European] STUAR{t} Y [unknown].
- Heat must get stripped out for article to reach freezing point
- W
- 26 BUY A PUP/COWSHED
- Where to fix bayonet in a tight corner
- Terrible current cost to bear when China defeated and fiasco ends
- Having poor focus, and so on, before start of holidays
- Woolly logic — ultimately a daring plan
- If in a WAR OF NERVES one happens to be the winner, one wouldn’t be DEMORALISED.
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 W mean?
W noun- Watt
- West
- Witness
- Work
- Wanker
- Wide
- White
- With