Took a seat, wearing something silky (5)
I believe the answer is:
satin
'silky' is the definition.
(synonyms)
'took a seat wearing' is the wordplay.
'took a seat' becomes 'sat' (I've seen this in another clue).
'wearing' becomes 'in' (you are 'in' the clothes you're wearing).
'sat'+'in'='SATIN'
'something' acts as a link.
I am not very happy about this link. It may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for satin that I've seen before include "Fine material" , "Stain on shiny cloth" , "Silk fabric" , "Stain found in cloth" , "Stain on silky cloth" .)