The most common and most likely answer to this crossword clue is the 7 letter word FESTOON
I've seen this crossword clue in The Daily Telegraph
F
E
S
T
O
O
N
Buddy explains!

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 FESTOON mean?
FESTOON noun- An ornament such as a garland or chain which hangs loosely from two tacked spots.
- A bas-relief, painting, or structural motif resembling such an ornament.
- A raised cable with light globes attached.
- A cloud on Jupiter that hangs out of its home belt or zone into an adjacent area forming a curved finger-like image or a complete loop back to its home belt or zone.
- (acarology) Any of a series of wrinkles on the backs of some ticks.
- A specific style of electric light bulb consisting of a cylindrical enclosure with two points of contact on either end providing power to the filament or diode.
- Two sets of rollers used to create a buffer of material on web handling equipment.
- Any of various papilionid butterflies of the genus Zerynthia.
- Texturing applied to a denture to simulate human tissue.
- To decorate with ornaments, such as garlands or chains, which hang loosely from two tacked spots.
- To make festoons.
- To decorate or bedeck abundantly.
- To apply texturing to (a denture) to simulate human tissue.