Metalworker displaying pirate's legend, we hear (11)
I believe the answer is:
silversmith
'metalworker' is the definition.
(I've seen this before)
'pirate's legend we hear' is the wordplay.
'pirate's' becomes 'silver's' (Long John Silver in the novel Treasure Island).
'legend' becomes 'myth' (I've seen this in another clue).
'we hear' shows a homophone (sound like).
'myth' sounds like 'mith'.
'silvers'+'mith'='SILVERSMITH'
'displaying' is the link.
(Other definitions for silversmith that I've seen before include "Craftsman" , "Fine metal worker" , "Metalworker" , "artisan" , "Argentine worker" .)