Pinned description of Aegean island up! (6)
I believe the answer is:
nailed
'pinned' is the definition.
The answer and definition can be both related to competing as well as being past participle verbs.
Maybe there's an association between them I don't understand?
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for nailed that I've seen before include "Attached by means of a pointed piece of metal" , "Tacked" , "Fastened with metal pins" , "Firmly fixed" , "Firmly attached -- arrested" .)