Indicate a promontory (5)
I believe the answer is:
point
I believe this clue is a double definition.
'indicate' is the first definition.
(synonyms)
'a promontory' is the second definition.
(I know that point is a type of promontory)
(Other definitions for point that I've seen before include "Full stop; cricket position" , "Indicate - purpose" , "Sharp or tapering end" , "rocks?" , "electrical contact" .)