The most common and most likely answer to this crossword clue is the 8 letter word CUCUMBER
I've seen this crossword clue in The Daily Telegraph
C
U
C
U
M
B
E
R
More clues leading to the result CUCUMBER
- Two coppers, married, live on river — it's cool!
- Copper with dog accepted award
- Honour given to copper twice right for being as cool as this
- Vine fruit‘s colour originally between copper and brown
- Exemplarily cool climber
- One proverbially remains cool, though often framed
- Copper has trouble with something useless — a climbing plant
- Exemplarily cool salad ingredient
- Coppers given order by Royalty — it's cool
- Copper gets an award for stopping mongrel at a plant
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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 CUCUMBER mean?
CUCUMBER noun- A vine in the gourd family, Cucumis sativus.
- The edible fruit of this plant, having a green rind and crisp white flesh.