The most common and most likely answer to this crossword clue is the 5 letter word BRIMS
B
R
I
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More clues leading to the result BRIMS
Buddy explains!

The straight part
We know that "edges/ (5)" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case edges/ (5) = brims.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 BRIMS mean?
BRIMS noun- The sea; ocean; water; flood.
- An edge or border (originally specifically of the sea or a body of water).
- The topmost rim or lip of a container.
- A projecting rim, especially of a hat.
- To be full to overflowing.
- To fill to the brim, upper edge, or top.
- Of pigs: to be in heat, to rut.