The most common and most likely answer to this crossword clue is the 10 letter word SHORELINES
S
H
O
R
E
L
I
N
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S
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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 SHORELINES mean?
SHORELINES noun- The divide between land and a body of water.
- The line on a map that illustrates this.