Harsh noise from King Charles by his hiding place (5)
I believe the answer is:
croak
'harsh noise' is the definition.
Although both the answer and definition are singular nouns, I can't understand how they can define each other.
'king charles by his hiding place' is the wordplay.
I cannot quite see how this works, but
'king' could be 'cr' (short for Carolus Rex, King Charles in Latin) and 'cr' is present in the answer.
The remaining letters 'oak' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
'from' is the link.
Can you help me to learn more?
(Other definitions for croak that I've seen before include "Caw" , "Frog's sound - die" , "Noise from pond life - die" , "Make a froggy sound" , "Frog's call" .)