The most common and most likely answer to this crossword clue is the 7 letter word ROULEAU
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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 ROULEAU mean?
ROULEAU noun- A little roll; a roll of coins put up in paper, or something resembling such a roll.
- A decorative technique that involves creating patterns with piping, cording or bias tape. A rouleau loop uses the same cord or piping as a way of fastening buttons, most notably down the back of bridal gowns.
- (chiefly in the plural) A stack of aggregated red blood cells, as seen in certain haematological and other diseases.
- (fortification) One of a bundle of fascines to cover besiegers.