Well-known where yours truly pointed (6)
I believe the answer is:
iconic
'well-known' is the definition.
(both can mean famous)
'yours truly pointed' is the wordplay.
'yours truly' becomes 'I' (the person who set this crossword).
'pointed' becomes 'conic' (cone-shaped).
'i'+'conic'='ICONIC'
'where' is the link.
(Other definitions for iconic that I've seen before include "highly symbolic" , "Very famous" , "Worthy of veneration" , "Stand-out" , "admired type" .)