Speaker finds gold by a hill (6)
I believe the answer is:
Here is my best explanation:
'speaker' is the definition.
(orator is a kind of speaker)
'gold by a hill' is the subsidiary indication.
'gold' becomes 'or'.
'by' is a charade indicator (letters next to each other).
'hill' becomes 'tor' (tor is a kind of hill).
'finds' is the link.
(Other definitions for orator that I've seen before include "An eloquent public speaker", "Speaker", "A fluent public speaker", "A skilled public speaker", "Formal speech maker", "A Rhetorical talker or speech-maker", "Skilled public speaker", "Speech maker", "A gifted public speaker" and "Speechmaker".)