The most common and most likely answer to this crossword clue is the 6 letter word EXISTS
I've seen this crossword clue in Independent
E
X
I
S
T
S
More clues leading to the result EXISTS
- Is prejudiced leader replaced at last?
- Departs having taken last of cats’ lives
- Is pushing spades through leaves
- Lives with bigot with front at last
- Is misogynistic after first becomes last
- … is son covered in leaves?
- Lives and dies clutching head of sword
- Lives a little fast, six espressos in turn
- Lives once sites are cleaned up by removing a bit of encumbrance
- Is sexist, with head in rear
Buddy explains!

The straight part
We know that "lives" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case lives = exists.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 EXISTS mean?
EXISTS verb- (stative) to be; have existence; have being or reality