The man was seated over by the tuft of threads (6)

I believe the answer is:

tassel

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'tuft of threads' is the definition.
(I've seen this before)

I cannot understand how the remainder of the clue works.

(Other definitions for tassel that I've seen before include "Hanging ornament" , "Part of maize plant" , "Bunch of cords as adornment" , "Decoration made from a tuft of threads" , "Grapefruit and tangerine hybrid" .)

I've seen this clue in The Irish Independent.

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