A ____ cross is worn on the breast by high-ranking clergy (8)
I believe the answer is:
pectoral
'a cross' is the definition.
(thesaurus)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for pectoral that I've seen before include "(Large muscle) of the chest" , "Relating to the breast or chest" , "Of the chest or breast, like muscles" , "Ornamental breastplate" , "sort of cross" .)