Person at sea embraces Saint Nicholas, say (4)
I believe the answer is:
tsar
'person' is the definition.
The answer is an example.
'sea embraces saint nicholas say' is the wordplay.
I cannot really understand how this works, but
'saint' could be 's' and 's' is found in the answer.
The remaining letters 'tar' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
'at' is the link.
Can you help me to learn more?
(Other definitions for tsar that I've seen before include "Nicholas II, say" , "specific authority" , "Male monarch" , "Tyrant" , "Russian ruler (S, not Z)" .)