In a rugged cove, I say (5)
I believe the answer is:
voice
'say' is the definition.
(I know that voice is a more specific form of the action say)
'in a rugged cove i' is the wordplay.
'cove i' anagrams to 'VOICE'.
Though, I'm not clear how this is indicated.
Can you help me to learn more?
(Other definitions for voice that I've seen before include "Sound with which one speaks" , "Give expression to" , "eg Bass" , "Sound produced by humans" , "Put into words" .)