Star of many westerns? (5)
I believe the answer is:
badge
'star' is the definition.
(thesaurus)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for badge that I've seen before include "medal" , "Emblem signifying rank, membership etc" , "Shield" , "Symbol worn for identification" , "Insignia (of office?)" .)