The most common and most likely answer to this crossword clue is the 11 letter word DESTINATION
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More clues leading to the result DESTINATION
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The straight part
We know that "Haven" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case haven = destination.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 DESTINATION mean?
DESTINATION noun- The act of destining or appointing.
- Purpose for which anything is destined; predetermined end, object, or use; ultimate design.
- The place set for the end of a journey, or to which something is sent; place or point aimed at.