Widely recognized, as a symbol (6)
I believe the answer is:
iconic
I believe this clue is a double definition.
'widely recognized' is the first definition.
(I've seen this in another clue)
'as a symbol' is the second definition.
(I've seen this before)
(Other definitions for iconic that I've seen before include "Relating to religious pictures" , "Emblematic, representative" , "much revered" , "Like a symbol/image" , "Representatively symbolic" .)